Although the national semiconductor lighting project is progressing smoothly, we should clearly see that compared with the international, China still has a certain gap in semiconductor lighting technology and industry, and it still faces many problems that need to be solved urgently.
First of all, the core technologies and patents of industrialization are lacking, the investment in research and development is insufficient, the research power is scattered, and the national public R&D platform lacking industrialization is lacking.
The core technology research of epitaxial materials in China is still in a weak position. The core equipment of MOCVD (Chemical Vapor Deposition Equipment) for producing epitaxial materials is also highly dependent on imports, unable to support the continuous innovation of epitaxial core technologies, processes and methods, and has high manufacturing costs. The research and development of semiconductor lighting epitaxial materials not only invests heavily in equipment and raw materials, but also is a hard work that people and machines combine to explore. Compared with foreign countries, China's research investment is obviously insufficient, research power is scattered, and research work lacks continuity. Coupled with the problem that equipment, technology and information cannot be effectively shared, the core technology research and development has not formed a synergy, and the lack of effective The integration of individual technologies and the promotion of industrial and engineering support platforms that are mature in technology and engineering cannot form a rational allocation and centralized investment of independent innovation resources.
Secondly, the development of the industrial chain is not balanced, the scale of the company is weak and the innovation ability is weak, and the high-end market is occupied by international companies.
Although China's LED industry has successively realized its own production of devices, chips and epitaxial wafers, its self-produced LED epitaxy and chips are still dominated by medium and low-grade products, and the industrial scale is small. More than 80% of high-power LED chips and devices are used. Still dependent on imports. Due to the speed of technological advancement and the large-scale application market being formed, there is an urgent need for the expansion of large-scale production capacity and product performance in the upper and middle reaches. At present, although private capital is involved faster, compared with foreign countries, the scale of the company is small, it does not form a competitive advantage and brand, and the ability of technological innovation and risk taking is far from enough. Therefore, the high-end extension and chip market are still dominated by several international giants. monopoly.
Again, the standards and testing systems are imperfect and lack an authoritative testing platform.
Due to the rapid advancement of semiconductor lighting technology, involving many industries, in the marginal zone of multidisciplinary industries, and insufficient investment in the research and development of testing equipment and testing methods, the standards and testing systems for semiconductor lighting have not yet been formed, and there is no An authoritative testing platform for semiconductor lighting products. Due to the great technical differences of LED products, there is no professional authority, unified testing institutions and certification standards, coupled with the enthusiasm of local governments, and eager to develop local enterprises, resulting in uneven product quality, seriously affecting consumer confidence.
Finally, there is a lack of policies for the development of the photovoltaic industry.
The United States, Japan, the European Union, etc. have taken a series of measures to promote the application and promotion of semiconductor lighting. Compared with foreign countries, China has no relevant industrial promotion policies or no implementation rules, and lacks corresponding measures to support industrial development. In particular, core equipment and key raw materials are highly dependent on imports. Excessive import tariffs and value-added taxes have seriously affected the reduction of manufacturing costs and the expansion of scale of domestic upstream epitaxial chip companies.
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