China's domestic LED industry development status
As of December 2006, more than ten epitaxial chip manufacturers in China have been equipped with MOCVD, and the total number of inputs into production is 40. According to the expansion plans of various manufacturers, it is expected that 15 MOCVDs will be installed and put into use in 2007, increasing the number of domestic GaN MOCVD equipment to 55 units.
The distribution of domestic LED chip market in 2006 is shown in Figure 5. Among them, the market value of InGaN chips accounts for about 43%, and the market value of Quaternary InGaAlP chips accounts for about 15% of the total domestic LED chips; the market value of other types of LED chips accounts for about 42%. Calculated from the domestic chip output value, the domestic InGaN chip output value was 450 million yuan in 2006, and the domestic InGaN chip demand total output value was 2.5 billion yuan; the domestic non-InGaN chip (Puliang and Quaternary) total output value was 600 million yuan, while the domestic non-InGaN chip The total output value of demand is 1.7 billion yuan, and the total demand for the domestic chip market is 4.2 billion yuan. InGaN and high-brightness quaternary accounts for 58% of the total domestic chips, indicating that the domestic and international chip manufacturing and application markets have reached a certain level.
At present, there are about 600 enterprises with a certain package size in China, and there are more than 1000 large and small package enterprises. At present, the domestic LED device packaging capacity is about 60 billion/year. In 2006, the sales of domestic high-brightness LED package products were about 14.6 billion yuan, up 46% from 10 billion yuan in 2005. From the perspective of the distribution area, it is mainly concentrated in the Pearl River Delta, the Yangtze River Delta, Jiangxi, Fujian, and Bohai Rim. (In 2005, the total output value of the domestic LED industry was 13.3 billion yuan, of which the sales of packaged and packaged products was about 10 billion).
In terms of production capacity, with the expansion of the production scale of domestic related companies and the successive entry of new chip companies, the domestic InGaN chip capacity has been doubled from 65 KK/month in 2003 to 400 KK/month in 2005, driven by the domestic demand market. In 2006, it was further upgraded to 600 KK/month, and the domestic self-production supply rate increased year by year. It is expected that domestic InGaN chips will maintain a compound annual growth rate of around 30% in the next few years. By 2010, China will surpass Japan to become the world's second largest GaN chip production base with a capacity of up to 1650 KK/month, actually due to the investment of LED MOCVD equipment. The production capacity is particularly fast, and these estimates are somewhat conservative.
In terms of industrial technology development, the domestically developed 1W power LED chip can be industrialized, and its luminous efficiency is 30lm~40lm/W, up to 47.5lm/W, and the transmission power of a single device is 150mW, up to 189mW. Nanchang University has carried out research on the growth of GaN epitaxial materials on silicon substrates in recent years. The developed blue light chips have a power of 7mW to 8mW, preferably 9mW to 10mW, and the chip yield is 80%. The power LED chip emits power at 350mA. It is from 100mW to 150mW, preferably up to 150mW. Under the 500 mA, 1000 hour power-on test, the light attenuation of blue light is less than 5%. The achievement achieved breakthrough progress, passed the “863†project acceptance, and obtained a number of international invention patents with independent property rights. The patent breaks the current situation in which Japanese Nichia Corporation monopolizes the sapphire substrate and the US Cree monopoly silicon carbide substrate semiconductor lighting technology, forming a three-legged situation in which sapphire, silicon carbide, and silicon substrates are used to make blue light semiconductor lighting technology solutions. The industrialization process will not be restricted by Nichia and Cree Blu-ray patents, and the most mature white light synthesis scheme is the way of blue light + YAG phosphor powder. In the future, it is necessary to master the blue chip technology in the field of white light illumination, the silicon of Nanchang University. The substrate blue light patent has an extremely broad market prospect. On the morning of February 1, 2007, Jinghua Optoelectronics (Jiangxi) Co., Ltd.'s “Silicon Substrate Light-Emitting Diode Materials and Devices†industrialization project, which is expected to have a total investment of USD 70 million, was officially opened in Nanchang High-tech Industrial Development Zone. engineering. The project technology is derived from the Engineering Research Center of the Ministry of Education of Materials and Devices of Nanchang University, and has received strong support from the three international venture capital funds of Jinshajiang, Mayfield and AsiaVest. The entire industrialization project will be constructed in three phases. The first phase of construction is expected to be completed by the end of this year, forming an annual production capacity of 3 billion silicon-based blue and green LED chips. The second phase of construction will achieve an annual output of silicon substrate blue and green. The light LED chip is 14 billion pieces; the third phase is to build the upper, middle and lower reaches industrial chain to realize the LED industry cluster and realize an annual output value of 5 billion yuan.
Dalian Lumei acquired more than 40 core technology patents and acquired the entire technical team through the acquisition of American AXT Company. Therefore, the chip technology research and development capability is the strongest in the country. Currently there are only 10 MOCVDs in the US, the domestic production capacity is not large, more MOCVD The equipment is in the US AXT; the domestic Sanan is the largest in Xiamen, and the technical level is also in the forefront. Others such as Silan Micro (11.17, -0.08, -0.71%), Silan Mingxin has made great progress in technology in recent years. The outlook is clearer.
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