Rapid development of substrate technology innovation into the focus of LED development

2009 China LED display industry forum in May 24th "Shenzhen photoelectric display held during the week. At the same time, in order to commend and encourage outstanding enterprises and technological innovation, the first China LED industry annual awards ceremony held at the same time.

LED (light emitting diode) industry is a sunrise industry, green industry. LED show became the biggest highlight of the May 23rd -26 day, Shenzhen photoelectric show week. In the context of the international financial crisis, many exhibition and forum "ice" or "shrink", and 24 "2009 Chinese LED display industry forum" has attracted more than 500 business leaders and experts attended the LED. In a number of favorable policies and technologies to promote the continuous maturity of a strong, LED a variety of applications, especially lighting and large size backlight applications are on the eve of the blowout development. National semiconductor lighting engineering research and Industry Alliance Secretary General Wu Ling stressed in the LED display industry forum, while the rapid development of the industry, we must face the problem, especially the key issues of patent, standard, innovation system. From a technical point of view, China's LED epitaxy, chip, especially the substrate technology advances quickly, some experts believe that in the development of LED industry in the follow-up, epitaxy, chip and package of integrated innovation technology has become the trend of industrial sustainable development.

Silicon substrate technology has realized industrialization

Long LED substrate technology has been monopolized by the Japanese company Nichia sapphire and silicon carbide substrate of CREE company in the United states. Crystal photoelectric (Jiangxi) Co., Ltd. is relying on the Ministry of education, Nanchang University, Ministry of education and Engineering Research Center for light-emitting materials and devices, specializing in silicon substrate GaN (Dan Huajia) LED epitaxial material and chip production of high-tech enterprises. In the "2009 China LED display industry forum, Nanchang University Professor, director of the Yangtze River latticepower forny made a keynote speech, according to reports, technical route of silicon substrate GaN based LED chip go fundamentally with Japan, the United States and a few other developed countries of the GaN based LED technology is not the same. Gan LED other companies on the market to sell production are based on sapphire or silicon carbide as substrate, and latticepower products for the preparation of GaN based LED chip in the first generation of semiconductor materials on silicon substrate, crystal can photoelectric technology route with original. At present, the crystal has also taken the lead in the world to achieve a new product mass production. Although at present the amount of our products is not large, but its advantages have emerged, the future development of space is still very optimistic. "Jiang Fengyi thinks.

Silicon substrate LED technology is one of the three original technology, has a complete intellectual property rights, has applied for and obtained the domestic and international 52 patents. It can be believed that latticepower has broken the present Japan Nichia monopoly of American CREE company sapphire and silicon carbide substrate of semiconductor lighting technology monopoly situation, the formation of sapphire, silicon carbide, silicon substrate of semiconductor lighting technology, a situation of tripartite confrontation.

Chinese optical photonics Optoelectronics Industry Association branch secretary, Anhui Wenrun photoelectric Limited company president Chen Hesheng said, in 2008 the domestic LED chip made by domestic epitaxial wafer total production and sales have reached about 30 billion PCS, the ultra high brightness chip about 1/3. 1 watt LED chip, many domestic enterprises have achieved industrialization technology breakthrough in different extent, the luminous efficiency of bulk products can reach 50 lumens per watt to 70 lumens, have a certain price competition in the market, and in the independent intellectual property rights also have quite a lot of achievements.

The general manager of Shenzhen laserman Photoelectric Technology Co., Ltd. Li Mantie said in an interview with reporters, said that if the LED product quality and function of our 5 years ago, both chips, devices, applications, and the leading foreign products gaps of up to 50%, now the average gap has been shortened to 10% to 20%. Some of the products and beyond. In this case, there is no need to choose foreign products. It is time for China's LED enterprises bigger and stronger, which requires the consensus of the industry and the whole society. Li Mantie said.

Chen Hesheng think, technically speaking, LED epitaxy, chip, especially the substrate technology, domestic progress is very fast, in the industrial development, epitaxy, chip and package of integrated innovation technology has become the trend of industrial sustainable development.

Integrated innovation industry chain collaboration

The development of 2008 rounds of "337" incident on China LED industry sounded the alarm. At present, China's LED to improve the competition ability of technology development, a series of complete with independent property rights is that we as a business, a pressing matter of the moment, while strengthening the independent research and development and protection of intellectual property rights in some peripheral take self-protection measures have certain feasibility, but the core of the work still need from the whole the height of the industry to do. "Chen Hesheng thinks.

Electric Technology Group thirteenth professor Zhang Wansheng believes that the "China electronic newspaper" in an interview with reporters, crucial technological innovation and scientific and technological progress on the development of LED industry, the establishment of a complete system of technology innovation, it is very important for the development of China's LED industry and international competitiveness. Technological innovation and scientific and technological progress by the Ministry of science and technology should be based on the domestic hospital, pay close attention to the implementation of the development of LED industry by the Ministry of industry and information technology, the national development and Reform Commission to promote the implementation of the main manufacturers. "Zhang Wansheng suggests.

Silicon substrate LED technology is one of the three original technology, has a complete intellectual property rights, has been to