Domestic LED (Light Emitting Diode) epitaxial chip core equipment MOCVD (Metal Organic Chemical Vapor Deposition) was successfully launched in Guangdong Zhaoxin Semiconductor Equipment Manufacturing Co., Ltd. In January last year, Zhaoxin Group signed a contract with Huazhong University of Science and Technology to develop MOCVD, a core device for LED epitaxial chips. In less than a year, this device was successfully introduced to the market. Gan Zhiyin, general manager of Guangdong Zhaoxin Semiconductor Equipment Manufacturing Co., Ltd. said that once the domestic industrialization of MOCVD equipment is introduced to the market, the investment cost of LED chip production will be greatly reduced, bringing revolutionary impact to the domestic LED industry, and the price of LED packaging products at home and abroad. Will be greatly reduced. Domestic LED core equipment is breaking through, but whether the successful downline of domestic MOCVD equipment can change the market structure of LED epitaxial chip core equipment remains to be tested by the market.
Localization of equipment greatly reduces LED costs
MOCVD is the most important equipment in the production of LED epitaxial chips. At present, there are only 3 to 5 companies that can produce this equipment worldwide, including Aixtron (70% international market share), UK. Thomas Swan (acquired by Aixtron), Veeco (20% international market share), American Emcore (acquired by Veeco), Japanese cation (Sanso, 7% international market share, mainly in the country) Sales). The equipment required by domestic LED manufacturers must be imported, and such equipment requires about 15 million yuan each, and the purchase cost accounts for about 2/3 of the total cost of the LED production line. Dr. Liang Bingwen, chairman of Suzhou Najing Optoelectronics Co., Ltd., researcher and doctoral supervisor of Suzhou Institute of Nanotechnology, Chinese Academy of Sciences, said that the success of localization of key equipment such as MOCVD must mean lower LED costs. “At present, these devices are relatively expensive. Under normal circumstances, in the first few years, the depreciation of equipment accounts for about 12%-40% of the cost of the entire LED chip. Therefore, the localization of key equipment will greatly reduce the manufacturing of LEDs. Cost." Liang Bingwen said.
Peng Wanhua, secretary general of the Fujian Optoelectronics Industry Association and former secretary of the Optoelectronics Branch of the China Optical Optoelectronics Industry Association, said in an interview that there are several units in the United States, Germany, Japan and South Korea that can manufacture MOCVD epitaxial furnace equipment. The MOCVD equipment was developed, and the prototype was also used for trial use by the unit, but I did not know why it did not progress. "Because MOCVD equipment is the most critical equipment for the development of the LED industry, it plays an important role in the development of the LED industry. The relevant national departments should concentrate the talents and resources of the original MOCVD equipment units, focus on key development, and solve the key problems in manufacturing equipment. Technology, master the core technology with independent property rights, and realize the localized mass production of MOCVD equipment as soon as possible. Only in this way will accelerate the development of LED industry, reduce the cost of LED related products, and achieve greater industrial development." Peng Wanhua believes.
With the development of technology and the increasingly prominent advantages of LED in green energy conservation, LED has been widely used in various fields. The initial technical obstacles are gradually eliminated, LED development is changing with each passing day, and strong demand is also stimulating the core of LED chips. Production equipment—MOCVD is moving toward low cost, high performance, and high productivity.
The combination of process and equipment is the key to promotion
The process without equipment must be on paper, and the equipment without process will be passive water. Professor Jiang Fengyi, vice president of Nanchang University and chief scientist of Jingneng Optoelectronics, said in an interview with China Electronics News that the production of MOCVD equipment should fully consider the combination of process and equipment, and neither equipment nor technology should be neglected. Jiang Fengyi suggested that the state not only needs to fund the research and development of MOCVD equipment, but also to support the epitaxial production enterprises to try MOCVD in the research and development stage. Because in the trial process, the enterprise is not stable production, it needs to spend huge sums of money to explore the epitaxial production process according to the characteristics of the equipment. It is necessary to find out the manpower, material resources and financial resources of the successful epitaxial production process, and even exceed the research and development costs of the equipment itself.
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