LED sapphire substrate will be replaced?

As the winner of the first batch of overseas high-level talents of Qingdao million venture capital fund, Dr. Zhuang Dejin returned to Qingdao in the development of nitride semiconductor substrate wafer has three years. Today, the team has developed the first group of crystal has been pushed to the market, is expected to replace the existing LED lighting sapphire substrate, change the LED industry chain, accelerate the popularity of LED lighting to ordinary families.

"Our team developed the substrate wafer after the development of the available area of more than twice the size of the U.S. company, the performance is more excellent, the cost is also reduced by half. 15 pm, located in the Laoshan District of Qingdao aluminum gallium Semiconductor Co., Ltd., Zhuang Dejin introduced their research and development of nitride semiconductor substrate wafer. Is the source of nitride wafers LED photoelectric semiconductor industry chain, LED epitaxial wafer preparation of substrate materials, devices in the semiconductor substrate wafer on the basis, can be applied to high temperature and high frequency, the car engine, the drilling bit ultra high temperature field is applied to the LED lighting products, LED lighting products more than three now two aluminum oxide the substrate luminous efficiency can be increased more than one times.

According to reports, gallium nitride substrate wafer has the advantages of low cost, high cost performance, can promote the downstream industry to adjust the technical structure, improve production efficiency. For example, before the production of a LED product requires a total of 15 steps, with a gallium nitride substrate wafer, the production process requires only six or seven steps on it. "Zhuang Dejin said GaN substrate wafer to the market, is expected to replace the existing sapphire substrate material in the field of high-end, real change in LED industrial chain, will also promote the popularity of LED lighting to ordinary families in a certain extent, to achieve the effects of energy saving and environmental protection.

"The main difficulty in the development of this project is funding, in which the government has given me a lot of help. "Zhuang Dejin said, he came to Qingdao in 2009, Qingdao city has become the first batch of overseas high-level talents for innovation and entrepreneurship start-up fund winner, won 1 million yuan gold project started. Subsequently, Zhuang Dejin has also won by the Ministry of science and technology, science and Technology Bureau of Qingdao City, Laoshan district to provide various types of funds, shareholders invested a total of more than 700 yuan, while the city of Qingdao for Zhuang Dejin and his family, the child offers a variety of life insurance.

Today, the team has been working with several well-known domestic enterprises as well as the Chinese Academy of Sciences Institute of physics, such as cooperation. "Now production capacity is limited, a lot of big orders not to pick up. "Zhuang Dejin said GaN substrate wafer just last year to the market, with the expanding market demand, Zhuang Dejin will lead his team stationed in Qingdao City," millions of square meters of incubator ", to further expand the production scale, the existing capacity will be significantly improved.

"Blue talent" Introduction

Zhuang Dejin, 1996, graduated from the Tianjin University in chemical engineering, and went to the United States Department of chemical engineering Kansas State University learning and a Ph.D. in chemical engineering, then carry out the research in the Department of materials science and engineering at North Carolina State University as a visiting scholar. In the meantime, the development, optimization and industrialization of nitride wide band gap semiconductor materials, invented the low energy consumption nitride semiconductor etching characterization technology.

From 2006 to 2008, served as senior engineer in the United States HexaTe-ch company, the main research of the nitride semiconductor preparation and characterization methods, the industrialization of the nitride semiconductor substrate materials, and is responsible for the work of market strategy research. 2009, to Qingdao and the creation of gallium gallium Optoelectronic Semiconductor Co., ltd..