[Unveiled] Black technology behind waterproof smartphone
There are indications that the new generation of waterproof technology will become a new hotspot for mobile phones, wearable devices and other products in 2017. This year, Samsung Galaxy A series, LG's new flagship mobile phone G6, etc. will use the IP68 level waterproof function for the first time; considering that Apple iPhone 7 already supports IP67 waterproof, the watch supports IP68 50m waterproof, and the next generation iPhone should further improve the waterproof level without any suspense; Domestic brands including OPPO, VIVO, Huawei, and Xiaomi are also introducing waterproofing on a large scale. This will undoubtedly greatly promote the related industries such as liquid silicone, speaker, connector, PCB circuit protection, and detection.
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The future of waterproof smartphones
Approximately 82 million mobile phones are damaged each year from contact with water or other liquids. The IDC report shows that among all the equipment being repaired, liquid intrusion is the second major cause of damage after the broken screen, accounting for up to 35%. In 2015 alone, about 328 million smartphones were damaged by liquid intrusion. IDC estimates that less than 10% of smartphones worldwide are currently waterproof, with annual losses of $96.7 billion due to liquid intrusion.
Reason for smartphone damage
Consumer demand for waterproof features
To protect your smartphone from liquid damage, you have two options: use metal or a strong material to form a physical barrier with a tighter physical seal to achieve a waterproofing effect. However, this will cause the mobile phone to be cumbersome and has poor heat dissipation performance, which runs counter to the current trend of thin and compact mobile phones. The second is nano-plating technology. The water-repellent nano-plating prevents liquid from entering or eroding, greatly reducing the contact of the liquid with the vulnerable parts inside and outside the phone, and does not affect the appearance and performance of the product.
Although P2i's chief operating officer and president of Asia, Huang Maoyuan, said in an interview that nano-waterproof coatings are sufficient for daily waterproofing compared to mechanical and physical seals, and are less expensive and more efficient, and can improve product heat dissipation. . But in fact it was not used by all mobile phone manufacturers at first, until Apple introduced the iPhone 7 and iPhone 7 Plus, the industry's interest in water-repellent nano-plating began to rise significantly.
As a company dedicated to nano-water-repellent technology, P2i, founded in 2004, has protected more than 175 million smartphones to date. Its patented pulse plasma processing technology provides an invisible protective coating for electronic devices that is only one-thousandth the thickness of human hair, Motorola, Samsung, Lenovo Tab3 7/Tab3 10, Nokia, Blackberry, TCL, and Huawei P8. The waterproof technology is used in products such as P8Max, P9, P9 Plus and Mate S.
P2i process
The one-button process is simple and easy to apply to the entire product without the need to disassemble the product or cover sensitive parts. The factory-made product has the same look and feel as before, but adds water resistance. Today, P2i deploys hundreds of nano-coating systems worldwide.
P2i nano coating flow chart
1. The product is loaded in the equipment compartment.
2. All air in the process chamber is pumped out by the vacuum pump, so that the product is in a low pressure state. Radio frequency (RF) plasma activates the surface of the product, ensuring that water and other impurities that block binding are at a low pressure. The radio frequency (RF) plasma activates the surface of the product, ensuring that water and other impurities that block binding at low pressures can be removed and create free radicals that can bind.
3. The monomer is introduced into the chamber in a vapor state, and the pulsed RF plasma polymerizes and bonds the monomer to the free radical point on the surface of the product. In-cabin low pressure means that the monomer can diffuse to all areas of the substrate, allowing the polymer to cover all internal and external surfaces, thereby forming an ultra-thin polymer layer of only a few nanometers.
4. Then inject air into the cabin, return to the chamber pressure, and take out the product. The product can be used without secondary curing.
At present, there are two kinds of P2i nano-coating technology, one is water-repellent type (anti-splash type), which can be placed at the end of the mobile phone production line, and the whole machine is coated in all directions through a closed space, and the water repellent surface will not be Further, the adsorption effect, the liquid will naturally form a water droplet under the action of gravity, and it can prevent the capillary phenomenon at the narrow gap from occurring, thereby preventing water from entering the inside of the device. However, this method does not prevent small water droplets from entering large holes, such as the headphone jack and the UBS interface. The other is barrier type (resistance type), which mainly provides component level protection for printed circuit boards - effectively reducing the erosion of components after water contact, and greatly reducing the failure rate of equipment.
P2i coating type
Huang Mao originally said that if the IP68 level is reached, the cost of mobile phones may increase by more than a dozen dollars. For ordinary consumers, it is enough to achieve waterproofing and anti-splashing, and the cost is not increased.
2.92mm RF connectors
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