Ningbo's semiconductor lighting industry science and technology special "Eleventh Five-Year" implementation plan
The official launch of the semiconductor lighting project marks the rapid development stage of China's semiconductor lighting (LED) industry. How does the semiconductor lighting (LED) industry and semiconductor white light lighting technology develop during the “Eleventh Five-Year Plan†period, how to promote energy conservation through technological innovation The work of reducing emissions has become a common concern of the relevant government departments and the industry. To this end, in order to implement the “Ningbo Semiconductor Lighting Industry Development Strategic Planâ€, to reflect the construction of Ningbo Semiconductor Lighting Industry Base and promote the rapid development of the industry, we organize the city. Relevant experts have jointly compiled the "Special Implementation Plan for the Technology of the 11th Five-Year Semiconductor Lighting Industry in Ningbo".
I. Background and Significance Ningbo is one of the early start-up areas for the development and production of semiconductor lighting (LED) in China. After the efforts of the “Ninth Five-Year Plan†and the “Tenth Five-Year Planâ€, Ningbo Semiconductor Lighting (LED) industry has formed a good industry and technology base.矗 The scale of packaging (field) is formed, the advantages of applied products are outstanding, the supporting system is perfect, the prospects of related industries are good, the supporting system is strong, the mechanism is dynamic, and the innovation power is strong, which forms the unique regional characteristics of Ningbo Semiconductor Lighting (LED) industry. With the development of full-color high-brightness and high-power optical technology in the semiconductor lighting (LED) industry, its application steps from flashlights, garden lights, lawn lights, and ordinary landscape lights to high-power LED outdoor lighting, indoor lighting, and automobiles. Lighting, scene lighting, cabinets and home lighting, LCD industry development, further provide broad prospects for LED applications.
Ningbo's semiconductor lighting industry achieved rapid development in quantity and scale during the 10th Five-Year Plan period, and developed a series of application products suitable for domestic and international markets, especially LED flashlights, garden lights, lawn lights, landscape lights, solar LED lights, etc. In terms of products, the total production at home and abroad occupies an important position, and the export of products is at the forefront in China. The overall scale of the industry, product structure, technical level, production equipment and management level have all improved significantly. The development speed has maintained a growth rate of around 30% in recent years, far higher than the national average development level of 20%. By the end of 2006, the city had a total of more than 4,000 lighting manufacturers, according to 113 statistical calibers above the scale, completed sales of 4.35 billion yuan, accounting for 80% of the city's lighting industry sales, export delivery value of 3 billion yuan, profits and taxes 420 million yuan There are more than 200 patents in various patents. It is estimated that the economic indicators in 2007 will increase by more than 30% compared with 2006.
Although Ningbo has the location advantages, application advantages, supporting advantages, market advantages of the Yangtze River Delta, and there are rare opportunities for LCD backlight development, there are also some urgent problems and bottlenecks. If the industrial chain is not complete, lack of chip enterprises; the overall industry level is low, high-end LEDs still rely on imports; the scale of enterprises is generally small, lacking industry leading enterprises and famous brand products; industry and product structure are not reasonable enough, especially in application products The proportion of LED products is relatively low; the lack of core patent technology, the main export products have been plagued and restricted by foreign patents; the independent innovation capability is low, the network of production, education and research is not sound and extensive; the professional talents, especially the senior talents, are seriously lacking, and the technology research and development The investment is not high, and the industrialization of scientific and technological achievements is difficult; only a few enterprises and products have reached the domestic advanced level; the number of enterprises is large, and the cooperation and cooperation between them are not strong, leading to the overall small and large LED industry in Ningbo. Not a strong pattern.
In order to improve the research and innovation capabilities of Ningbo's semiconductor lighting industry, with government guidance, enterprises as the mainstay, market-oriented operation, technology innovation as the core, mechanism innovation as the guarantee, increase investment in major key technologies, concentrate efforts, break through the key points, and strengthen Collaboration, focus on the development of power-type high-brightness LEDs and application products, through the development of ultraviolet LED, GaN substrate, photonic crystal technology and other ways to greatly improve LED luminous efficiency, LED lighting system design and application integration technology; accelerate power type The industrialization of white light packaging and application products will enhance the level of GaN-based light-emitting devices in our city. During the “Eleventh Five-Year Plan†period, we will encourage the formation of core technologies and standards for semiconductor lighting with independent intellectual property rights through the implementation of a number of major industrialization projects and technical research projects. The city and district science and technology research and development funds and corporate funds will be used to build a public technology research and development platform and a testing platform training center to fully provide technical services such as public R&D, product testing, test analysis and talent training. Establish a semiconductor lighting business incubator to promote the rapid development of the industry.
In order to seize the historical opportunity of the global lighting industry revolution, China has become the world's semiconductor lighting (LED) product manufacturing base, which brings a rare opportunity for the development of Ningbo's semiconductor lighting industry, and also provides an overall upgrade for the semiconductor lighting industry in the city. Necessary conditions. In order to further accelerate the development of the semiconductor lighting industry, improve the overall level of the industry, and continuously improve the economic aggregate of the semiconductor lighting industry in Ningbo, it has truly become one of the pillar industries of Ningbo. The formulation of the special implementation plan for the “Eleventh Five-Year†semiconductor lighting industry is A fundamental guarantee for the implementation of the above objectives.
Second, the overall goal relies on Ningbo's existing industrial base storage superior location advantages, comparative cost advantages and keen insight into the international market, through the integration of the semiconductor industry and traditional lighting, to create a competitive advantage, fully integrated into the global industry Chain, high-end industrial level semiconductor lighting industrialization base. Seize the historical opportunity of industrial development and transfer, introduce key core industries and technologies to improve and enhance industrial structure and layout, expand industrial scope and scale, enhance technological innovation and transformation capabilities, and build a core city of domestic and international semiconductor lighting industry.
Clear goals, highlight key points, and implement them step by step. Recently: continue to maintain the advantages in packaging and accessory parts and applications, accelerate the cultivation and development of a number of leading enterprises with strong competitiveness, and form a number of distinctive products with independent intellectual property rights in the packaging and several application fields. A key technology R&D center with continuous innovation capabilities. Long-term: strive to achieve industrialization in the field of white light general lighting, by attracting 2-3 epitaxial chip enterprises at home and abroad to settle down, fill the gaps of extension and chips, form a relatively complete high-end industrial chain and innovation chain, and build a domestically leading technology. The R&D platform will cultivate a group of enterprises with international and domestic competitiveness, form a number of brand products, master a number of core technologies, and build a domestic semiconductor lighting industry technology innovation demonstration base and a major application product manufacturing base.
Through this special implementation and technical research, the key technologies of the semiconductor lighting industry have made breakthroughs; cultivate and create a high-level, high-quality, scientific and technological innovation team; establish an effective independent innovation mechanism for effective allocation and utilization of scientific and technological resources, and make the industry innovative The ability has been greatly improved, and the gap with foreign advanced technology has been narrowed. The specific objectives are as follows:
By 2010, the annual output value of the lighting industry and related industries in our city will reach 35 billion yuan. Profits and taxes of 5 billion yuan, export delivery value of 18 billion yuan; improve chip, packaging, lighting, backlight, supporting five industrial chains; form 10 scale enterprises, of which annual output value of more than 5 billion, an annual output value of 1 -3 billion 3, with an annual output value of 5 to 100 million; 6 enterprise engineering and technology centers, 10 new national products; 5-10 brand-name products; 80 patents for approval and application, various technologies 50 results and 20 excellent scientific papers.
Through this special implementation, we will continue to increase technology research and development and innovation, and strive to make breakthroughs in key technologies in the field of LED backlights for LCDs in 2010, and form industrialization; Ningbo should become the main packaging, production, R&D and application of domestic semiconductor lighting industry. One of the bases; improve and form the scale of the epitaxial chip industry, increase the proportion of medium and high-end chips; build and improve new product research and development and industrial supporting systems, form a cluster effect, design and manufacture a number of LED products and lighting products that are close to the international advanced level, and build up Ningbo regional quality brand; create a technology innovation platform and comprehensive testing service platform; develop a batch of advanced process equipment and testing equipment, making Ningbo truly become a semiconductor lighting industry base with considerable scale and influence at home and abroad.
Third, the key common technology to be solved
1. Power LED packaging technology The development of power LED packaging technology will greatly affect the development of LED applications. The key technology is that the package structure should have high light extraction efficiency, low thermal resistance and reliability to ensure long-term efficient and stable operation of power LED. The main research contents: high light efficiency, high light color uniform package structure design and process research, including high light extraction efficiency lens design, phosphor coating amount, shape and uniformity control, chip photoelectric parameter coordination, light color parameter control and other issues; Low thermal resistance packaging technology and process research, including low thermal resistance interface material research, new heat sink structure and fabrication process research; high reliability packaging technology and process research, including material matching selection, package structure and process improvement; With the application of process technology and new technologies and new materials, the power level, efficiency and reliability of LED devices are effectively improved, and relevant corporate standards are formulated.
2. LED indoor and outdoor lighting fixtures and system integration technology Faced with the general lighting market, with intelligent and scene lighting as the main body, the key technologies of industrialization of new intelligent semiconductor lighting systems were developed to realize the illumination of semiconductor lighting from special lighting to general lighting. The transition will drive the upgrade of traditional lighting technology. The main research content LED lighting application development, that is, research white light LED lamp structure, color temperature, optical system design, circuit, heat dissipation, sealing, waterproof, shockproof, anti-voltage shock, etc., to solve the problem of white LED application lighting. At the same time, the development of high-brightness LED lighting systems, drive and control systems, focusing on breaking through the system integration technology of indoor and outdoor power LED lighting, and formulating relevant corporate standards.
3, LCD LED backlight application technology to meet the needs of LCD modules to continue to brighter, lighter, thinner direction, LED backlights to replace CCFL to become mainstream products, must ensure the brightness uniformity of the panel, improve the color rendering index, There are major breakthroughs in improving application life and achieving sub-regional color and chromaticity adjustment. In addition, low-cost production technology is also a key industrialization technology to be solved by LED backlight modules. The main research contents include: optical design technology of three primary color (RGB) LED package and module assembly, thermal resistance and heat dissipation research and related process technology breakthrough, LED research and development of backlight module, system integration application technology.
The research breakthrough of this key technology is the support of the core competitiveness of LED backlight products for LCD production. The application of LED backlight technology is a potential highlight of Ningbo.
4, solar LED product integration technology Solar energy and LED combination is considered to be the most ideal combination of electric light source, different application methods have different requirements. The requirements for solar LED products are mainly reflected in product integration, energy utilization, outdoor reliability and automatic adaptation to environmental aspects. Improving the integration technology and intelligence level of solar LED products is the focus of LED product design and production. The key technologies are the integration technology of solar photovoltaic system and lighting-grade white LED; charging and discharging management technology of battery charging and discharging; driving circuit technology; maintenance-free technology of battery; automatic light control technology, enhancing product reliability and solar cell utilization efficiency, etc. And develop several relevant corporate standards.
IV. Key Projects This special project sets 12 key projects in the four main research areas.
Key Project 1: Absorption, digestion and innovation of epitaxial chip related process technologies in the upper and middle reaches: research and development of deep ultraviolet technology, GaN substrate, GaN epitaxial layer laser lift-off, Si substrate epitaxy, large-size power chip design, Breakthroughs in technologies such as high power output, reduced thermal resistance and cost.
Expected goal: Based on the existing foundation, gradually turn to the research and development of GaN epitaxial chips, quickly fill the gaps in the middle and upper reaches of Ningbo's semiconductor lighting industry chain, and have high technical content, most profit, and impact on final product quality in the semiconductor lighting industry chain. The biggest key technology links to achieve breakthroughs, and strive to form products with independent intellectual property rights. Main technical indicators: blue GaN-based LED chip optical output power efficiency ≥350mW/W (350mA), working voltage <3.5V (350mA), reverse current ≤0.1μA (5V), light output saturation current ≥700mA, antistatic ( ESD) Human body mode > 1000V. The performance of the LED chip package needs to meet the main technical indicators in the key project 2.
Key Project 2: Research and research content of high-power LED packaging technology: Carry out research on independent intellectual property rights, develop new technologies suitable for the application products of our city, take enterprises as the main body, unite with universities and research institutes, and experts at home and abroad. Cooperative research on power LED equipment technology; new structure high power LED preparation technology; reliability; new high power white LED packaging materials and processes, including high refractive index optical materials and welding materials; electrostatic protection technology; photonic crystal structure high power white light LED technology, etc.
Expected target: aiming at the middle and high-end market, focusing on the development of LED application products in the fields of lighting, backlight, automotive, etc., to meet the development needs of Ningbo's semiconductor lighting industry, and strive to become an important LED middle and high-end product packaging base in the Yangtze River Delta and China. The final product of intellectual property rights, and strive to declare 5 patents, forming 2-5 scale enterprises. Main technical indicators: LED module lumen efficiency ≥100lm/W (350mA), correlated color temperature 3000~10000K adjustable, color rendering index ≥75, thermal resistance ≤8°C/W, working life ≥50000 hours (light flux drops to initial value 70%).
Key Project 3: R&D and Industrialization Technology of LED Light Sources for Road Lighting Research Content: This project has developed a single optical design that integrates secondary optical design, low thermal resistance, high light output, and stable characteristics. A high-power dedicated white LED light source, and the formation of industrial mass production, so that the products are directly applied to road lighting, and eventually replace the traditional street lamps and widely occupy the city's usual expectations: this project promotes the wide application of semiconductor lighting in the field of road lighting, creating for the society Great wealth; forming a final product with independent intellectual property rights; forming a R&D base for road lighting LED light source; and cultivating a new R&D team with innovative capabilities.
Main indicators: The overall luminous efficiency of LED functional lighting fixtures ≥80lm/W; product color temperature difference ≤±300K; color rendering index ≥80; junction temperature rise ≤25 oC during normal lighting; 1000 hours room temperature rated current aging light Decay ≤ 3%; lamp efficiency ≥ 90%; drive circuit efficiency over 90%, power factor ≥ 0.95, harmonic ≤ 10%. Outdoor lighting meets technical requirements such as waterproof and dustproof.
Key Project 4: Research and development of serialization products for indoor space lighting Research content: For LED fluorescent lamps, the components of the chip-type LEDs are arranged uniformly, with good consistency and low thermal resistance; using computer optical simulation design, the LEDs are “points†The light source "transforms to the "line light source"; the optical part composed of the high reflectivity reflective material and the high light transmittance homogenizing material improves the actual light extraction efficiency of the lamp; the design and development of the intelligent controller.
Expected goal: Through the above-mentioned technology research and development, research and development of 2-3 kinds of industrialized products, and promote and apply in our city, replace the current indoor space lighting fluorescent lamps, energy-saving lamps and other products, to save energy, reduce costs, protect The purpose of the environment. Establish a set of LED fluorescent lamp and downlight production enterprise standards, and provide reference for national and industry standards. Apply for 3-4 patents.
Main indicators: design more than two LED functional lighting fixtures, the overall luminous efficiency ≥ 80lm / W; product color temperature difference ≤ ± 300K; color rendering index ≥ 80; normal lighting temperature rise ≤ 25 oC; 1000 hours room temperature Under rated current aging light failure ≤ 3%; lamp efficiency ≥ 90%; drive circuit efficiency over 90%, harmonics <10%.
Key Project 5: Research and development of ultra-low-light-white LEDs: In the LED package, the key technical problems that need to be solved for light decay, through the research and development of this project, change the traditional package structure and reduce the heat dissipation channel, so that the heat can be quickly Diffusion; improve packaging materials, improve material heat resistance; thermal resistance from interface, package stress. Optimize and improve the material properties, etc., to achieve a target of 5% within 1000 hours of constant current 100 mA room temperature.
Expected target: The project can implement 2-3 invention patents and 1-2 utility model patents, and will change the current passive situation of high-end LEDs in China relying on foreign manufacturers.
Key Project 6: LED lighting and integrated system technology research and research content: This project plans to research and develop the key technologies of industrialization of new intelligent semiconductor lighting systems; study white light LED lamp structure, color temperature, optical system design, circuit heat dissipation, sealing, Waterproof, shockproof, anti-voltage shock and other technologies to solve the problem of white LED application lighting. At the same time, we will study the series of technical problems of high-brightness LED lighting systems and various characteristic lighting fixtures, and rapidly improve the level and technical content of the Ningbo lighting industry.
Expected goal: Through the implementation of this project, the proportion of LED lamps in Ningbo lighting fixtures will be increased to over 40% in the near future. Actively develop new products to enhance product grades and added value, enhance the comprehensive competitiveness of existing lighting industry, and ensure that Ningbo lighting industry maintains a strong competitive advantage in the semiconductor lighting industry, forming 3-5 large-scale enterprises with considerable influence in China.
Main indicators: the overall luminous efficiency of the lamp is ≥80lm/W; the product color temperature difference is ≤±300K; the color rendering index is ≥80; the junction temperature rises ≤25 oC during normal lighting; the rated current aging light decay is ≤3% at 1000 hours The luminaire efficiency is ≥90%; the drive circuit efficiency is over 90%. The luminaire has a bus or wireless stepless dimming function.
Key Project 7: LED backlight application technology research content for LCD: This project is developed by LED devices for backlight modules; optical design technology for RGB LED packaging and module assembly, thermal resistance and heat dissipation research and corresponding process technology research; Research on manufacturing and detection technology of high-efficiency LED backlight devices; research on secondary optical system design technology and thermal design technology; power supply and drive circuit design, power consumption/heat generation technology, color/brightness feedback control system, active/regional system research; System integration technology research, and development of mass production inspection technology and high-efficiency production process technology research, to achieve a new breakthrough in the application of LED in the field of LCD.
Expected target: After the implementation of this project, it will not only form the LED application industry group with the most Ningbo characteristics, but also provide supporting guarantee for the further development of the LCD industry, and establish a relatively complete LED backlight R&D system to reach the domestic leading level.
Main Specifications:
1. Effective display size diagonal of 47 inches;
2. Color gamut: ≥ 105%;
3. Static backlight at 6500K color temperature, LCD panel center brightness ≥ 500Nits;
4. Uniformity: brightness > 85% (nine points), chromaticity (color coordinates): ± 0.02;
5. Static backlight LED power <200W;
6. The overall mixed light thickness <30mm;
7.1000 hours light decay <3%.
Key Project 8: LED combined with solar energy, wind energy lighting research and development Research content: This project is to study and solve the technical process application problems involved in the combination of solar energy, wind energy and LED, improve the integration technology and intelligence level of LED products; solve solar energy system and Lighting level white LED integrated technology, charge and discharge management technology, drive circuit and automatic light control and battery life technology to enhance product reliability and solar cell utilization efficiency.
Expected goal: With China's efforts to build a conservation-oriented society, vigorously promote energy-saving and emission reduction technologies and promote environmental protection, this project has very good economic and social benefits, which can drive the rapid development of the entire semiconductor lighting industry chain. At the same time, it can form a series of products with independent intellectual property rights.
Key Project 9: R&D of semiconductor lighting accessory products Research content: This project is intended to carry out research and development of high-power drive, laying the foundation for future white light lighting applications of high-power LEDs, simultaneously developing multi-series, multi-variety driver chips, and developing new types. Drive module, research and development of new packaging materials such as new bonded copper wire, research and development of SMD, LED lead frame, etc., to promote the development of Ningbo semiconductor lighting industry.
Expected goal: To form high-power LED driver chip, power module and lead frame, and new packaging material research and development and production base for backlight and illumination, and provide powerful supporting products and technology support for the development of Ningbo semiconductor lighting industry.
The main technical indicators (power module is the drive circuit): at least two styles of LED drive circuit, achieve: power efficiency > 90%; power factor > 0.95, harmonic content <10%, drive power 50 ~ 100W.
Key Project 10: Construction of Public Testing Service Platform Research Content: Through the construction of public inspection, service and evaluation platform, various problems encountered in product design, development, production, testing and other aspects, including circuit parameter calculation and component specification selection Electromagnetic compatibility countermeasures, product safety design, green environmental raw material selection, green supply chain system establishment, ROHS response program consultation, etc. provide a series of technical support for enterprises, providing reliable guarantee for products through various certifications and environmental protection requirements.
Expected goal: Provide technical service and guarantee for product testing, evaluation, and standardization and industrial development, and strive to achieve the semiconductor lighting test platform test results can be compared with the international advanced testing center test results for verification and mutual benefit. Specific technical indicators: DC power supply stability is 0.03%, fast switching response is better than 1ms (can generate square wave pulse of 1ms pulse width); AC power supply stability is better than 0.2%; electrical measurement instrument accuracy is better than 0.1%; EMC The lightning strike capability reaches 5kV/2.5kA; the high-precision fast spectrometer wavelength range is 380nm-780nm, the chromaticity coordinate accuracy is better than 0.002, the chromaticity coordinate repeatability is better than 0.0003, the single measurement speed can be less than 10ms; the distribution photometer has excellent angular precision. At 0.1°, the light intensity detection range is 10mcd-1000kcd, f1'<2%, and the measurement speed is up to 3rpm. The measured light source can remain stationary during measurement.
Key Project 11: Reliability Test and Rapid Evaluation of Semiconductor Lighting Devices Content: This project is intended to conduct reliability testing and rapid evaluation of semiconductor lighting devices, with a view to improving the reliability of semiconductor lighting devices and accelerating the application of semiconductor lighting devices. The main research contents: (1) Study the failure mechanism of high-power LED devices: use multi-scale, multi-physics domain process mechanics simulation and experiment to reveal or discover the influence mechanism of main physical quantities such as temperature, stress and strain on the light efficiency and reliability of LED devices; (2) Study the impact of high-power LED device packaging materials on its reliability: research on new testing mechanisms and methods based on multi-scale and multi-physics domains for materials used in LED packaging; (3) Study on high-power LED package fast reliability Evaluate the mechanism and method to study the prediction mechanism and method of LED lifetime.
Expected objectives: (1) To build a more complete scientific theory system for LED device packaging and system failure mechanism, to provide theoretical basis for high-efficiency and high-reliability LED device packaging; (2) to establish various materials in dynamic through new method testing A database system of stress, strain, optical, thermal, and electrical properties under the environment (temperature, humidity, etc.) provides a basis for researching and exploring the physical mechanisms in the package. (3) Build and improve the fast reliability evaluation theory system applicable to semiconductor lighting, establish relevant fast reliability evaluation standards, and greatly shorten the reliability evaluation time of enterprise LED devices. (4) Assist enterprises to improve the reliability of LED products and enhance the international competitiveness of Ningbo enterprises.
Key Project 12: A new generation of high-power LED design R&D Research content: To break the monopoly of large companies in Europe and the United States on the key technologies of high-power LED and its product manufacturing process, develop a new generation of high-power LEDs with independent intellectual property rights, and improve Ningbo and even the international competitiveness of China's high-power LED products, while accumulating technical reserves for the long-term sustainable development of Ningbo's semiconductor lighting industry, the project will carry out the following exploratory research: (1) large size, high luminous efficiency, low thermal resistance , high reliability new LED chip structure design and related manufacturing process research; (2) application-oriented wafer-level direct white LED research, the subsequent part of the packaging process (such as secondary optical design) integrated in the previous LED chip manufacturing Simplify the subsequent packaging process, reduce the size of the LED module, and reduce the cost of the LED module; (3) Develop a new application-oriented LED for the development trend of a new generation of LED chips such as high-density high-power LED integrated chips and new micro-structured LED chips. Module package structure design, material matching selection and manufacturing process research; (4) LED chip design and subsequent sealing
Expected goal: From LED chip, package structure design to final product application design and manufacture, realize a series of key technologies with independent intellectual property rights, and do a good job of technology accumulation for the development of Ningbo new generation high-power LED. The implementation of this project can declare 3-4 invention patents and 3-4 utility model patents. Main technical indicators: LED chip light extraction efficiency ≥ 80%, LED module lumen efficiency ≥ 100lm / W (350mA), correlated color temperature 3000 ~ 10000K adjustable, color rendering index ≥ 75, thermal resistance ≤ 8 ° C / W, working life ≥ 60000 hours (the luminous flux drops to 70% of the initial value), the overall lumen efficiency of LED lamps is ≥80lm/W.
V. Organizational Implementation Form This special project is led by Ningbo Science and Technology Bureau and will be organized and implemented by relevant departments and the Semiconductor Lighting Branch of the Electronics Industry Association. Recommendations: 1. Form a technical consulting group for key technologies in the semiconductor lighting industry. It is responsible for the formulation of the overall plan and implementation plan. The consultation, evaluation and project undertakers of each project select, determine, supervise and supervise the organization and implementation of each special project, and carry out special projects. Mid-term evaluation and performance appraisal and appraisal. 2. The project system and the chief expert responsibility system can be implemented for the key projects in the special project. Foreign experts can also be hired to participate. The conditions are mature and one is implemented. The project undertaker and project leader are selected by merit entrustment or open bidding. . 3. Expand the demand of the domestic market through various methods such as government procurement and demonstration projects, promote the application of LED products, and increase the penetration of the traditional lighting market. 4. Establish a semiconductor lighting industry (LED) R&D alliance. Taking enterprises as the mainstay, research institutes jointly tackle the problem, realize the core common technological breakthroughs of the semiconductor lighting industry, reduce duplication of investment, share results, provide a platform for the future development of the industry, and allocate funds to guarantee key projects for the three funds of the city's science and technology. Organize and implement, give full play to the guiding role of financial science and technology investment, and all county (city) and district science and technology management departments must also arrange certain funds to support key projects in the region. Establish a scientific and technological innovation and input system with enterprises as the mainstay, and guide leading enterprises to invest in science and technology in the semiconductor lighting (LED) industry. Any enterprise that applies for the science and technology project in this special project requires that the investment in science and technology investment of the enterprise is not lower than the funding for financial technology investment.
I. Background and Significance Ningbo is one of the early start-up areas for the development and production of semiconductor lighting (LED) in China. After the efforts of the “Ninth Five-Year Plan†and the “Tenth Five-Year Planâ€, Ningbo Semiconductor Lighting (LED) industry has formed a good industry and technology base.矗 The scale of packaging (field) is formed, the advantages of applied products are outstanding, the supporting system is perfect, the prospects of related industries are good, the supporting system is strong, the mechanism is dynamic, and the innovation power is strong, which forms the unique regional characteristics of Ningbo Semiconductor Lighting (LED) industry. With the development of full-color high-brightness and high-power optical technology in the semiconductor lighting (LED) industry, its application steps from flashlights, garden lights, lawn lights, and ordinary landscape lights to high-power LED outdoor lighting, indoor lighting, and automobiles. Lighting, scene lighting, cabinets and home lighting, LCD industry development, further provide broad prospects for LED applications.
Ningbo's semiconductor lighting industry achieved rapid development in quantity and scale during the 10th Five-Year Plan period, and developed a series of application products suitable for domestic and international markets, especially LED flashlights, garden lights, lawn lights, landscape lights, solar LED lights, etc. In terms of products, the total production at home and abroad occupies an important position, and the export of products is at the forefront in China. The overall scale of the industry, product structure, technical level, production equipment and management level have all improved significantly. The development speed has maintained a growth rate of around 30% in recent years, far higher than the national average development level of 20%. By the end of 2006, the city had a total of more than 4,000 lighting manufacturers, according to 113 statistical calibers above the scale, completed sales of 4.35 billion yuan, accounting for 80% of the city's lighting industry sales, export delivery value of 3 billion yuan, profits and taxes 420 million yuan There are more than 200 patents in various patents. It is estimated that the economic indicators in 2007 will increase by more than 30% compared with 2006.
Although Ningbo has the location advantages, application advantages, supporting advantages, market advantages of the Yangtze River Delta, and there are rare opportunities for LCD backlight development, there are also some urgent problems and bottlenecks. If the industrial chain is not complete, lack of chip enterprises; the overall industry level is low, high-end LEDs still rely on imports; the scale of enterprises is generally small, lacking industry leading enterprises and famous brand products; industry and product structure are not reasonable enough, especially in application products The proportion of LED products is relatively low; the lack of core patent technology, the main export products have been plagued and restricted by foreign patents; the independent innovation capability is low, the network of production, education and research is not sound and extensive; the professional talents, especially the senior talents, are seriously lacking, and the technology research and development The investment is not high, and the industrialization of scientific and technological achievements is difficult; only a few enterprises and products have reached the domestic advanced level; the number of enterprises is large, and the cooperation and cooperation between them are not strong, leading to the overall small and large LED industry in Ningbo. Not a strong pattern.
In order to improve the research and innovation capabilities of Ningbo's semiconductor lighting industry, with government guidance, enterprises as the mainstay, market-oriented operation, technology innovation as the core, mechanism innovation as the guarantee, increase investment in major key technologies, concentrate efforts, break through the key points, and strengthen Collaboration, focus on the development of power-type high-brightness LEDs and application products, through the development of ultraviolet LED, GaN substrate, photonic crystal technology and other ways to greatly improve LED luminous efficiency, LED lighting system design and application integration technology; accelerate power type The industrialization of white light packaging and application products will enhance the level of GaN-based light-emitting devices in our city. During the “Eleventh Five-Year Plan†period, we will encourage the formation of core technologies and standards for semiconductor lighting with independent intellectual property rights through the implementation of a number of major industrialization projects and technical research projects. The city and district science and technology research and development funds and corporate funds will be used to build a public technology research and development platform and a testing platform training center to fully provide technical services such as public R&D, product testing, test analysis and talent training. Establish a semiconductor lighting business incubator to promote the rapid development of the industry.
In order to seize the historical opportunity of the global lighting industry revolution, China has become the world's semiconductor lighting (LED) product manufacturing base, which brings a rare opportunity for the development of Ningbo's semiconductor lighting industry, and also provides an overall upgrade for the semiconductor lighting industry in the city. Necessary conditions. In order to further accelerate the development of the semiconductor lighting industry, improve the overall level of the industry, and continuously improve the economic aggregate of the semiconductor lighting industry in Ningbo, it has truly become one of the pillar industries of Ningbo. The formulation of the special implementation plan for the “Eleventh Five-Year†semiconductor lighting industry is A fundamental guarantee for the implementation of the above objectives.
Second, the overall goal relies on Ningbo's existing industrial base storage superior location advantages, comparative cost advantages and keen insight into the international market, through the integration of the semiconductor industry and traditional lighting, to create a competitive advantage, fully integrated into the global industry Chain, high-end industrial level semiconductor lighting industrialization base. Seize the historical opportunity of industrial development and transfer, introduce key core industries and technologies to improve and enhance industrial structure and layout, expand industrial scope and scale, enhance technological innovation and transformation capabilities, and build a core city of domestic and international semiconductor lighting industry.
Clear goals, highlight key points, and implement them step by step. Recently: continue to maintain the advantages in packaging and accessory parts and applications, accelerate the cultivation and development of a number of leading enterprises with strong competitiveness, and form a number of distinctive products with independent intellectual property rights in the packaging and several application fields. A key technology R&D center with continuous innovation capabilities. Long-term: strive to achieve industrialization in the field of white light general lighting, by attracting 2-3 epitaxial chip enterprises at home and abroad to settle down, fill the gaps of extension and chips, form a relatively complete high-end industrial chain and innovation chain, and build a domestically leading technology. The R&D platform will cultivate a group of enterprises with international and domestic competitiveness, form a number of brand products, master a number of core technologies, and build a domestic semiconductor lighting industry technology innovation demonstration base and a major application product manufacturing base.
Through this special implementation and technical research, the key technologies of the semiconductor lighting industry have made breakthroughs; cultivate and create a high-level, high-quality, scientific and technological innovation team; establish an effective independent innovation mechanism for effective allocation and utilization of scientific and technological resources, and make the industry innovative The ability has been greatly improved, and the gap with foreign advanced technology has been narrowed. The specific objectives are as follows:
By 2010, the annual output value of the lighting industry and related industries in our city will reach 35 billion yuan. Profits and taxes of 5 billion yuan, export delivery value of 18 billion yuan; improve chip, packaging, lighting, backlight, supporting five industrial chains; form 10 scale enterprises, of which annual output value of more than 5 billion, an annual output value of 1 -3 billion 3, with an annual output value of 5 to 100 million; 6 enterprise engineering and technology centers, 10 new national products; 5-10 brand-name products; 80 patents for approval and application, various technologies 50 results and 20 excellent scientific papers.
Through this special implementation, we will continue to increase technology research and development and innovation, and strive to make breakthroughs in key technologies in the field of LED backlights for LCDs in 2010, and form industrialization; Ningbo should become the main packaging, production, R&D and application of domestic semiconductor lighting industry. One of the bases; improve and form the scale of the epitaxial chip industry, increase the proportion of medium and high-end chips; build and improve new product research and development and industrial supporting systems, form a cluster effect, design and manufacture a number of LED products and lighting products that are close to the international advanced level, and build up Ningbo regional quality brand; create a technology innovation platform and comprehensive testing service platform; develop a batch of advanced process equipment and testing equipment, making Ningbo truly become a semiconductor lighting industry base with considerable scale and influence at home and abroad.
Third, the key common technology to be solved
1. Power LED packaging technology The development of power LED packaging technology will greatly affect the development of LED applications. The key technology is that the package structure should have high light extraction efficiency, low thermal resistance and reliability to ensure long-term efficient and stable operation of power LED. The main research contents: high light efficiency, high light color uniform package structure design and process research, including high light extraction efficiency lens design, phosphor coating amount, shape and uniformity control, chip photoelectric parameter coordination, light color parameter control and other issues; Low thermal resistance packaging technology and process research, including low thermal resistance interface material research, new heat sink structure and fabrication process research; high reliability packaging technology and process research, including material matching selection, package structure and process improvement; With the application of process technology and new technologies and new materials, the power level, efficiency and reliability of LED devices are effectively improved, and relevant corporate standards are formulated.
2. LED indoor and outdoor lighting fixtures and system integration technology Faced with the general lighting market, with intelligent and scene lighting as the main body, the key technologies of industrialization of new intelligent semiconductor lighting systems were developed to realize the illumination of semiconductor lighting from special lighting to general lighting. The transition will drive the upgrade of traditional lighting technology. The main research content LED lighting application development, that is, research white light LED lamp structure, color temperature, optical system design, circuit, heat dissipation, sealing, waterproof, shockproof, anti-voltage shock, etc., to solve the problem of white LED application lighting. At the same time, the development of high-brightness LED lighting systems, drive and control systems, focusing on breaking through the system integration technology of indoor and outdoor power LED lighting, and formulating relevant corporate standards.
3, LCD LED backlight application technology to meet the needs of LCD modules to continue to brighter, lighter, thinner direction, LED backlights to replace CCFL to become mainstream products, must ensure the brightness uniformity of the panel, improve the color rendering index, There are major breakthroughs in improving application life and achieving sub-regional color and chromaticity adjustment. In addition, low-cost production technology is also a key industrialization technology to be solved by LED backlight modules. The main research contents include: optical design technology of three primary color (RGB) LED package and module assembly, thermal resistance and heat dissipation research and related process technology breakthrough, LED research and development of backlight module, system integration application technology.
The research breakthrough of this key technology is the support of the core competitiveness of LED backlight products for LCD production. The application of LED backlight technology is a potential highlight of Ningbo.
4, solar LED product integration technology Solar energy and LED combination is considered to be the most ideal combination of electric light source, different application methods have different requirements. The requirements for solar LED products are mainly reflected in product integration, energy utilization, outdoor reliability and automatic adaptation to environmental aspects. Improving the integration technology and intelligence level of solar LED products is the focus of LED product design and production. The key technologies are the integration technology of solar photovoltaic system and lighting-grade white LED; charging and discharging management technology of battery charging and discharging; driving circuit technology; maintenance-free technology of battery; automatic light control technology, enhancing product reliability and solar cell utilization efficiency, etc. And develop several relevant corporate standards.
IV. Key Projects This special project sets 12 key projects in the four main research areas.
Key Project 1: Absorption, digestion and innovation of epitaxial chip related process technologies in the upper and middle reaches: research and development of deep ultraviolet technology, GaN substrate, GaN epitaxial layer laser lift-off, Si substrate epitaxy, large-size power chip design, Breakthroughs in technologies such as high power output, reduced thermal resistance and cost.
Expected goal: Based on the existing foundation, gradually turn to the research and development of GaN epitaxial chips, quickly fill the gaps in the middle and upper reaches of Ningbo's semiconductor lighting industry chain, and have high technical content, most profit, and impact on final product quality in the semiconductor lighting industry chain. The biggest key technology links to achieve breakthroughs, and strive to form products with independent intellectual property rights. Main technical indicators: blue GaN-based LED chip optical output power efficiency ≥350mW/W (350mA), working voltage <3.5V (350mA), reverse current ≤0.1μA (5V), light output saturation current ≥700mA, antistatic ( ESD) Human body mode > 1000V. The performance of the LED chip package needs to meet the main technical indicators in the key project 2.
Key Project 2: Research and research content of high-power LED packaging technology: Carry out research on independent intellectual property rights, develop new technologies suitable for the application products of our city, take enterprises as the main body, unite with universities and research institutes, and experts at home and abroad. Cooperative research on power LED equipment technology; new structure high power LED preparation technology; reliability; new high power white LED packaging materials and processes, including high refractive index optical materials and welding materials; electrostatic protection technology; photonic crystal structure high power white light LED technology, etc.
Expected target: aiming at the middle and high-end market, focusing on the development of LED application products in the fields of lighting, backlight, automotive, etc., to meet the development needs of Ningbo's semiconductor lighting industry, and strive to become an important LED middle and high-end product packaging base in the Yangtze River Delta and China. The final product of intellectual property rights, and strive to declare 5 patents, forming 2-5 scale enterprises. Main technical indicators: LED module lumen efficiency ≥100lm/W (350mA), correlated color temperature 3000~10000K adjustable, color rendering index ≥75, thermal resistance ≤8°C/W, working life ≥50000 hours (light flux drops to initial value 70%).
Key Project 3: R&D and Industrialization Technology of LED Light Sources for Road Lighting Research Content: This project has developed a single optical design that integrates secondary optical design, low thermal resistance, high light output, and stable characteristics. A high-power dedicated white LED light source, and the formation of industrial mass production, so that the products are directly applied to road lighting, and eventually replace the traditional street lamps and widely occupy the city's usual expectations: this project promotes the wide application of semiconductor lighting in the field of road lighting, creating for the society Great wealth; forming a final product with independent intellectual property rights; forming a R&D base for road lighting LED light source; and cultivating a new R&D team with innovative capabilities.
Main indicators: The overall luminous efficiency of LED functional lighting fixtures ≥80lm/W; product color temperature difference ≤±300K; color rendering index ≥80; junction temperature rise ≤25 oC during normal lighting; 1000 hours room temperature rated current aging light Decay ≤ 3%; lamp efficiency ≥ 90%; drive circuit efficiency over 90%, power factor ≥ 0.95, harmonic ≤ 10%. Outdoor lighting meets technical requirements such as waterproof and dustproof.
Key Project 4: Research and development of serialization products for indoor space lighting Research content: For LED fluorescent lamps, the components of the chip-type LEDs are arranged uniformly, with good consistency and low thermal resistance; using computer optical simulation design, the LEDs are “points†The light source "transforms to the "line light source"; the optical part composed of the high reflectivity reflective material and the high light transmittance homogenizing material improves the actual light extraction efficiency of the lamp; the design and development of the intelligent controller.
Expected goal: Through the above-mentioned technology research and development, research and development of 2-3 kinds of industrialized products, and promote and apply in our city, replace the current indoor space lighting fluorescent lamps, energy-saving lamps and other products, to save energy, reduce costs, protect The purpose of the environment. Establish a set of LED fluorescent lamp and downlight production enterprise standards, and provide reference for national and industry standards. Apply for 3-4 patents.
Main indicators: design more than two LED functional lighting fixtures, the overall luminous efficiency ≥ 80lm / W; product color temperature difference ≤ ± 300K; color rendering index ≥ 80; normal lighting temperature rise ≤ 25 oC; 1000 hours room temperature Under rated current aging light failure ≤ 3%; lamp efficiency ≥ 90%; drive circuit efficiency over 90%, harmonics <10%.
Key Project 5: Research and development of ultra-low-light-white LEDs: In the LED package, the key technical problems that need to be solved for light decay, through the research and development of this project, change the traditional package structure and reduce the heat dissipation channel, so that the heat can be quickly Diffusion; improve packaging materials, improve material heat resistance; thermal resistance from interface, package stress. Optimize and improve the material properties, etc., to achieve a target of 5% within 1000 hours of constant current 100 mA room temperature.
Expected target: The project can implement 2-3 invention patents and 1-2 utility model patents, and will change the current passive situation of high-end LEDs in China relying on foreign manufacturers.
Key Project 6: LED lighting and integrated system technology research and research content: This project plans to research and develop the key technologies of industrialization of new intelligent semiconductor lighting systems; study white light LED lamp structure, color temperature, optical system design, circuit heat dissipation, sealing, Waterproof, shockproof, anti-voltage shock and other technologies to solve the problem of white LED application lighting. At the same time, we will study the series of technical problems of high-brightness LED lighting systems and various characteristic lighting fixtures, and rapidly improve the level and technical content of the Ningbo lighting industry.
Expected goal: Through the implementation of this project, the proportion of LED lamps in Ningbo lighting fixtures will be increased to over 40% in the near future. Actively develop new products to enhance product grades and added value, enhance the comprehensive competitiveness of existing lighting industry, and ensure that Ningbo lighting industry maintains a strong competitive advantage in the semiconductor lighting industry, forming 3-5 large-scale enterprises with considerable influence in China.
Main indicators: the overall luminous efficiency of the lamp is ≥80lm/W; the product color temperature difference is ≤±300K; the color rendering index is ≥80; the junction temperature rises ≤25 oC during normal lighting; the rated current aging light decay is ≤3% at 1000 hours The luminaire efficiency is ≥90%; the drive circuit efficiency is over 90%. The luminaire has a bus or wireless stepless dimming function.
Key Project 7: LED backlight application technology research content for LCD: This project is developed by LED devices for backlight modules; optical design technology for RGB LED packaging and module assembly, thermal resistance and heat dissipation research and corresponding process technology research; Research on manufacturing and detection technology of high-efficiency LED backlight devices; research on secondary optical system design technology and thermal design technology; power supply and drive circuit design, power consumption/heat generation technology, color/brightness feedback control system, active/regional system research; System integration technology research, and development of mass production inspection technology and high-efficiency production process technology research, to achieve a new breakthrough in the application of LED in the field of LCD.
Expected target: After the implementation of this project, it will not only form the LED application industry group with the most Ningbo characteristics, but also provide supporting guarantee for the further development of the LCD industry, and establish a relatively complete LED backlight R&D system to reach the domestic leading level.
Main Specifications:
1. Effective display size diagonal of 47 inches;
2. Color gamut: ≥ 105%;
3. Static backlight at 6500K color temperature, LCD panel center brightness ≥ 500Nits;
4. Uniformity: brightness > 85% (nine points), chromaticity (color coordinates): ± 0.02;
5. Static backlight LED power <200W;
6. The overall mixed light thickness <30mm;
7.1000 hours light decay <3%.
Key Project 8: LED combined with solar energy, wind energy lighting research and development Research content: This project is to study and solve the technical process application problems involved in the combination of solar energy, wind energy and LED, improve the integration technology and intelligence level of LED products; solve solar energy system and Lighting level white LED integrated technology, charge and discharge management technology, drive circuit and automatic light control and battery life technology to enhance product reliability and solar cell utilization efficiency.
Expected goal: With China's efforts to build a conservation-oriented society, vigorously promote energy-saving and emission reduction technologies and promote environmental protection, this project has very good economic and social benefits, which can drive the rapid development of the entire semiconductor lighting industry chain. At the same time, it can form a series of products with independent intellectual property rights.
Key Project 9: R&D of semiconductor lighting accessory products Research content: This project is intended to carry out research and development of high-power drive, laying the foundation for future white light lighting applications of high-power LEDs, simultaneously developing multi-series, multi-variety driver chips, and developing new types. Drive module, research and development of new packaging materials such as new bonded copper wire, research and development of SMD, LED lead frame, etc., to promote the development of Ningbo semiconductor lighting industry.
Expected goal: To form high-power LED driver chip, power module and lead frame, and new packaging material research and development and production base for backlight and illumination, and provide powerful supporting products and technology support for the development of Ningbo semiconductor lighting industry.
The main technical indicators (power module is the drive circuit): at least two styles of LED drive circuit, achieve: power efficiency > 90%; power factor > 0.95, harmonic content <10%, drive power 50 ~ 100W.
Key Project 10: Construction of Public Testing Service Platform Research Content: Through the construction of public inspection, service and evaluation platform, various problems encountered in product design, development, production, testing and other aspects, including circuit parameter calculation and component specification selection Electromagnetic compatibility countermeasures, product safety design, green environmental raw material selection, green supply chain system establishment, ROHS response program consultation, etc. provide a series of technical support for enterprises, providing reliable guarantee for products through various certifications and environmental protection requirements.
Expected goal: Provide technical service and guarantee for product testing, evaluation, and standardization and industrial development, and strive to achieve the semiconductor lighting test platform test results can be compared with the international advanced testing center test results for verification and mutual benefit. Specific technical indicators: DC power supply stability is 0.03%, fast switching response is better than 1ms (can generate square wave pulse of 1ms pulse width); AC power supply stability is better than 0.2%; electrical measurement instrument accuracy is better than 0.1%; EMC The lightning strike capability reaches 5kV/2.5kA; the high-precision fast spectrometer wavelength range is 380nm-780nm, the chromaticity coordinate accuracy is better than 0.002, the chromaticity coordinate repeatability is better than 0.0003, the single measurement speed can be less than 10ms; the distribution photometer has excellent angular precision. At 0.1°, the light intensity detection range is 10mcd-1000kcd, f1'<2%, and the measurement speed is up to 3rpm. The measured light source can remain stationary during measurement.
Key Project 11: Reliability Test and Rapid Evaluation of Semiconductor Lighting Devices Content: This project is intended to conduct reliability testing and rapid evaluation of semiconductor lighting devices, with a view to improving the reliability of semiconductor lighting devices and accelerating the application of semiconductor lighting devices. The main research contents: (1) Study the failure mechanism of high-power LED devices: use multi-scale, multi-physics domain process mechanics simulation and experiment to reveal or discover the influence mechanism of main physical quantities such as temperature, stress and strain on the light efficiency and reliability of LED devices; (2) Study the impact of high-power LED device packaging materials on its reliability: research on new testing mechanisms and methods based on multi-scale and multi-physics domains for materials used in LED packaging; (3) Study on high-power LED package fast reliability Evaluate the mechanism and method to study the prediction mechanism and method of LED lifetime.
Expected objectives: (1) To build a more complete scientific theory system for LED device packaging and system failure mechanism, to provide theoretical basis for high-efficiency and high-reliability LED device packaging; (2) to establish various materials in dynamic through new method testing A database system of stress, strain, optical, thermal, and electrical properties under the environment (temperature, humidity, etc.) provides a basis for researching and exploring the physical mechanisms in the package. (3) Build and improve the fast reliability evaluation theory system applicable to semiconductor lighting, establish relevant fast reliability evaluation standards, and greatly shorten the reliability evaluation time of enterprise LED devices. (4) Assist enterprises to improve the reliability of LED products and enhance the international competitiveness of Ningbo enterprises.
Key Project 12: A new generation of high-power LED design R&D Research content: To break the monopoly of large companies in Europe and the United States on the key technologies of high-power LED and its product manufacturing process, develop a new generation of high-power LEDs with independent intellectual property rights, and improve Ningbo and even the international competitiveness of China's high-power LED products, while accumulating technical reserves for the long-term sustainable development of Ningbo's semiconductor lighting industry, the project will carry out the following exploratory research: (1) large size, high luminous efficiency, low thermal resistance , high reliability new LED chip structure design and related manufacturing process research; (2) application-oriented wafer-level direct white LED research, the subsequent part of the packaging process (such as secondary optical design) integrated in the previous LED chip manufacturing Simplify the subsequent packaging process, reduce the size of the LED module, and reduce the cost of the LED module; (3) Develop a new application-oriented LED for the development trend of a new generation of LED chips such as high-density high-power LED integrated chips and new micro-structured LED chips. Module package structure design, material matching selection and manufacturing process research; (4) LED chip design and subsequent sealing
Expected goal: From LED chip, package structure design to final product application design and manufacture, realize a series of key technologies with independent intellectual property rights, and do a good job of technology accumulation for the development of Ningbo new generation high-power LED. The implementation of this project can declare 3-4 invention patents and 3-4 utility model patents. Main technical indicators: LED chip light extraction efficiency ≥ 80%, LED module lumen efficiency ≥ 100lm / W (350mA), correlated color temperature 3000 ~ 10000K adjustable, color rendering index ≥ 75, thermal resistance ≤ 8 ° C / W, working life ≥ 60000 hours (the luminous flux drops to 70% of the initial value), the overall lumen efficiency of LED lamps is ≥80lm/W.
V. Organizational Implementation Form This special project is led by Ningbo Science and Technology Bureau and will be organized and implemented by relevant departments and the Semiconductor Lighting Branch of the Electronics Industry Association. Recommendations: 1. Form a technical consulting group for key technologies in the semiconductor lighting industry. It is responsible for the formulation of the overall plan and implementation plan. The consultation, evaluation and project undertakers of each project select, determine, supervise and supervise the organization and implementation of each special project, and carry out special projects. Mid-term evaluation and performance appraisal and appraisal. 2. The project system and the chief expert responsibility system can be implemented for the key projects in the special project. Foreign experts can also be hired to participate. The conditions are mature and one is implemented. The project undertaker and project leader are selected by merit entrustment or open bidding. . 3. Expand the demand of the domestic market through various methods such as government procurement and demonstration projects, promote the application of LED products, and increase the penetration of the traditional lighting market. 4. Establish a semiconductor lighting industry (LED) R&D alliance. Taking enterprises as the mainstay, research institutes jointly tackle the problem, realize the core common technological breakthroughs of the semiconductor lighting industry, reduce duplication of investment, share results, provide a platform for the future development of the industry, and allocate funds to guarantee key projects for the three funds of the city's science and technology. Organize and implement, give full play to the guiding role of financial science and technology investment, and all county (city) and district science and technology management departments must also arrange certain funds to support key projects in the region. Establish a scientific and technological innovation and input system with enterprises as the mainstay, and guide leading enterprises to invest in science and technology in the semiconductor lighting (LED) industry. Any enterprise that applies for the science and technology project in this special project requires that the investment in science and technology investment of the enterprise is not lower than the funding for financial technology investment.
Alarm release mainly uses standard equipment such as audio alarms. During wartime, communication, broadcasting, and television systems must prioritize the transmission and issuance of air defense alarm signals, and auxiliary means such as sirens, horns, and gongs can also be used. The sound alarm must be set at the designated location, and the alarm facilities must be maintained in good working condition. The release and transmission of alarms should be fast and accurate, and multiple means should be used simultaneously; Strengthen communication and liaison with superiors, subordinates, and neighbors, receive air raid intelligence information at any time, strengthen observation of air targets, and promptly report air raid intelligence; According to the situation and duration of the air raid, timely release the warning signal. With the sudden increase of air raids, the increase of attack methods, and the expansion of destruction, the importance of air defense alerts is increasingly being valued. The accuracy, timeliness, and continuous issuance ability of air defense alerts are required to be higher. The issuance methods of air defense alerts will also become more flexible and diverse with the construction and improvement of communication and network.
Early Warning System, Control Devices, Electronic Sirens, Natural Disaster Warning System, Alarm System
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