Japanese LED new technology trends
Japan's hobby of LED technology, except that Nichia Chemical uses patents to extend the white light and RGB market in order to maintain its dominance. Most of the LED companies in Japan, except for operating the Japanese market, they no longer pay attention to and seek white light. The brightness of LEDs has improved, and they are currently focusing on how to plan good light quality lamps and differentiated equipment to make deep ultraviolet LEDs, especially the breakthrough of 265nm and 280nm. The more difficult it is, the more they are interested in research and mass production. , At present, the UVC products of Nichia and Nikki have made great breakthroughs and can be mass-produced, but the quotations are very expensive. Of course, the main skill of UVC chip is MOCVD equipment. Nichia's equipment is developed and planned for mass production by itself. No one knows the details of this equipment. At present, Taiyo Nippon Sanso of Japan's Taiyo Nippon Sanso has produced a SR-4000 MOCVD equipment for high-quality aluminum nitride materials, which is widely used in UVC production companies. Of course, the laboratory of Tokushima University and Nitride Semiconductors Co., Ltd. are also for UVC. developed a new type of MOCVD equipment, Japan is a country with widespread fine processing, and it is not a difficult job to assemble a piece of equipment in Japan.
Japan's development of silicon substrate LEDs. In 2012, Toshiba made a high-profile announcement to buy Preh's eight-inch silicon substrate patent and announced that it would mass-produce it in 2013. Every time I went to Japan's LED-related exhibitions in recent years, I never saw Toshiba's eight-inch silicon substrate patent. inch silicon substrate gallium nitride LED? Such a major LED exhibition should be exhibited, but this also proves that they do not have more than 90% mastery, and they will not promise them to have this talent. We Chinese are different, we only need to see the omens, even if it is only Halfway through, it will be intoxicated, so I believe that silicon still has a long way to go, and maybe it can only be used as auxiliary lighting in the future and not become mainstream.
However, Preh Bridgelux has participated in the exhibition every time, but if you look left and right, you can't see silicon. They are still sapphire formal chips. They are still the main COB light source. Of course, they also have Remote Phosphor technology. These things can only be deceived. The audience, for the insider, can only smile. Although the situation of New Century Optoelectronics has not been good in recent years, they have a deep presence in the Japanese market, so they will appear at the exhibition every year. His appeal is simple and shocking, a single 50W chip, which is suitable for traditional lighting manufacturers who want to upgrade to LED It is indeed a great boon. It seems that the flip-chip COB technology will be the mainstream of surface light sources in the future.
