MOCVD surge triggered LED industry risk hardware equipment to be broken

At present, due to the quality and price of GaN based LED, can only play a role in special lighting. Efforts to improve quality and lower prices, so that as soon as possible into the ordinary lighting, is one of the most important tasks.

LED light source efficiency increased rapidly in recent years, 6, 7 years increased by 4 to 5 times in the past, while the costs are declining, but declined very quickly, in order to avoid the risk of enterprises in the new round of investment and expansion should be fully considered in this trend.

The main technical problems of the current LED is to improve the luminous efficiency, reduce light and reduce costs. In the past few years to complete the technical indicators of the situation, the development of semiconductor lighting technology, much faster than the original plan. Luminous efficiency market power LED products reached 130lm/W.

The current high cost of procurement is a major obstacle to green lighting. The development of LED industry in mainland China, it is suggested that the breakthrough of new technology sprout, grow, new technology is not only a means to significantly reduce costs, but also the core of independent innovation.

The light emitting diode (LED) as the inventor of Holonyak2000 in J.P.S by the American Institute of physics of "light emitting diode is the final form of light?" published the article said: "the principle of light emitting diode is the final form of light, in fact, its development can and will continue to be fulfilled all the power and color understand, this is a very important point. 10 years later, this view is being confirmed. LED lighting applications are developing rapidly, technology is also constantly making a breakthrough. We see in the September 9th meeting of the Twelfth National LED industry seminars and academic meetings, and LED technology in China has made rapid progress, but at the same time, the hardware is becoming the bottleneck of development, especially the MOCVD (metal organic chemical vapor deposition) and other core equipment are restricting the development of the industry.

Rapid progress of hardware and equipment to be broken

The Twelfth National LED industry research and academic conference recently held in Shenzhen, as a major national academic conference, a comprehensive demonstration of the latest research results of the whole industry chain LED. From the report of the academic conference, we feel that China's LED technology is indeed rapid progress, especially the rapid progress of silicon substrate LED, attracted the attention of many industry attention. In the rapid advancement of LED technology at the same time, the hardware has not seen a breakthrough, the core equipment, especially MOCVD equipment is becoming the bottleneck of industrial development. Investment boom triggered by MOCVD equipment, is becoming the focus of attention of the industry.

Since 2003, national semiconductor lighting project to start, China's semiconductor lighting industry and technology has made significant progress, the initial formation of the middle and lower reaches of the R & D and relatively complete industrial system, entered the stage of rapid development. With enterprises as the mainstay of the LED manufacturing technology advances rapidly, power type chip packaging light effect industry line reached 80lm/W ~ 100lm/W. Power type Si chip package substrate LED light effect with independent intellectual property rights to 78lm/W, at the international advanced level.

At present, the main substrate of the international GaN based LED industry is sapphire, there are a small number of companies using SiC substrates and Si substrates. Si substrate is low in price and good in electrical conductivity, but the mismatch between Si and GaN is very large, and the density of GaN dislocation is higher, and it is easy to crack. It is very difficult to obtain high quality GaN epitaxial layer. Recently, Nanchang University has made great progress in the growth of GaN based blue LED on the Si substrate, and the optical effect reached 116.7 lumens, reaching the highest level of similar products.

At the same time, its technology has also been a strict patent protection, the development of large-scale industrialization, it is very important to improve the status of China's LED technology patents in the international arena. The successful development of the Si substrate GaNLED chip, rewrite the sapphire, SiC as the substrate of the history of the GaNLED, for the LED to open up a new technical route for general lighting. Judging from the reaction of the meeting, the silicon substrate LED is becoming the focus of attention of the industry, silicon substrate LED technology carrying the industry too much hope.

LED technology is very fast, in the rapid progress of technology at the same time, the hardware has not achieved a breakthrough, especially there is no mature domestic equipment, a large number of core equipment need to be imported, which seriously restrict the development of LED technology and industry.

MOCVD equipment imports surge in industrial development risk highlights

According to incomplete statistics, there are about 30 units in the country have been publicized or are preparing to LED epitaxial chip project. The amount of investment in the purchase of MOCVD equipment in 1400 ~ 1600 units, and the actual number of possible more than 500 ~ ~ 600 units.

Why there is such a big investment, Shandong wave Huaguang optoelectronics Co., Ltd. deputy general manager Ren Zhongxiang analysis that the guidance of wrong data, so that politicians and entrepreneurs. LED epitaxial wafer and chip industry accounted for about 70% of the profits, LED packaging accounted for about 10% ~ ~ ~, and LED applications may also account for about 10% ~ 20%, standing in the perspective of China this is a wrong data. According to the survey, the packaging industry and application of industry profits in 3% ~ 10%, calculated according to the average of 6% in 2009, China's packaging and application of profits in 4 billion 800 million yuan, the total output value of our country in 2009 and only 2 billion 300 million yuan in epitaxial chip, so LED epitaxial wafer and chip industry accounts for about 70% of the profit statement wrong. This wrong data makes people's investment hard to invest in the epitaxial wafer and chip industry.

Peng Wanhua, general secretary of the Fujian Provincial Association of optoelectronics industry believes that from the analysis of the LED market and the possibility of investment