China core counter attack! LED technology on silicon substrate etched at the peak

The river network of the national technology invention award only first prize - "high efficiency silicon substrate GaN based blue light emitting diode" project, can play the most incisive effect.

In 2015, the domestic LED industry by the impact of the economic downturn, but the transformation of enterprises, the project has the one and only original technology latticepower good momentum of development, mobile phone flash lamp with high power and rapid growth of LED, shipments in the domestic enterprises in the first place, the company profit level in the same industry enterprises. A few days ago, crystal Optoelectronics (Jiangxi) Co., Ltd. announced that in 2016 will add 100 new MOCVD equipment, help Nanchang Optics Valley building.

Counter attack, by the Chinese core". In the field of LED industry in the world, the independent development of the silicon substrate LED chips in Jiangxi, has established a complete industrial chain from upstream to downstream packaging, downstream applications.

How wonderful silicon substrate LED chip

High standard laboratory, supporting first-class air purification system, temperature and humidity control system. Big blue round silicon on the palm, a layer of "growth" of semiconductor materials, 2000 mm square chip distribution. This is the world's leading silicon substrate LED chip.

This new LED chip, is gradually approaching people's lives. By the end of 2015, the Nanchang University national silicon LED Engineering Research Center, the main project is completed Jiang carrying a small chip told reporters that the core components of the silicon substrate LED chip, a total of 70 layers (light emitting layer thickness of about 4 micron, is a normal human hair diameter 1/20).

What's so special about this little thing? Through the thick glass, looking at the chips on the silicon chip, the reporter can feel its magic.

The chip is most afraid of heat, the temperature of every 10 degrees C, its life will be reduced by half. The heat dissipation capability of the silicon substrate is three times higher than that of the sapphire, so that the heat generated in the work can be transferred to the silicon substrate and the temperature of the chip is controlled. If people put the silicon substrate of the lamp on the flashlight, can be irradiated to 100 meters, the sapphire LED chip may be only about 30 meters, the average light source is only about less than 10 meters.

Moreover, unlike the world's most popular sapphire and SiC substrates, silicon substrate light-emitting materials have obvious cost advantages in single side optical devices. International Research on silicon substrate for 40 years, it was finally Jiang team breakthrough, and to achieve the world's first mass production in Nanchang.

How important is the development of China's silicon substrate LED Technology

Before the birth of silicon substrate LED technology, China's LED industry mainly uses two technical solutions. One is called sapphire.

LED technology has a large role and is widely used, but 12 years ago, the development of China's semiconductor lighting industry is almost blank. At that time, 99% of the country's LED companies are using sapphire technology route. In this field of technology, covered with a patent covering the entire field". Prosecution to international large companies, frequently launched a patent war to counterbalance competitors.

In order to get rid of the patent control of foreign giants, we must rely on independent core technology patents, to build LED China core". In the face of the call of duty, Jiang decided to start the technology problem of independent research.

His innovative use of silicon instead of traditional sapphire or silicon carbide, as a substrate to fabricate GaN based LED devices. This is a new technology to rewrite the history of semiconductor lighting. The evaluation group in this country 863 experts is: "breaking a Japanese company and a U.S. company sapphire monopoly monopoly silicon carbide semiconductor lighting technology situation, the formation of sapphire, silicon carbide, silicon based semiconductor lighting technology scheme of a situation of tripartite confrontation situation. "

Today, the technology industry unit crystal energy in the substrate materials, epitaxial wafer manufacturing, chip packaging, lighting and other areas of the layout of the patent network, covering Europe, the United States, South Korea, Japan and other developed countries and regions LED. So far, 147 patents have been obtained.

Silicon substrate LED industry prospects

Silicon substrate LED the role of such a large, the reality of what applications?

From the large outdoor display to the ordinary mobile phone backlight, from the high power LED street lights to children's favorite shoes...... Due to energy saving, environmental protection, long life, LED led to a revolution in lighting light source, known as the most promising prospects for the development of green lighting in twenty-first Century.

Crystal energy photoelectric CEO Wang Min introduced, in the same lighting effect, semiconductor lighting (LED) than traditional light source energy saving 40% to 90%, life expectancy than traditional light source more than 10 times.

Product research and development in the market. Reporters learned that China's semiconductor lighting industry market size is expected to reach 1 trillion and 200 billion yuan in 2020. At present, the global LED industry market potential has reached 1 trillion yuan.

Has been engraved in the world silicon substrate LED technology peak, LED industry will continue to expand. In order to promote the rapid development, the "13th Five-Year" period, our province will vigorously develop Ji'an, Yichun, Pingxiang, Xinyu and other key area, extend the industrial chain, the upstream and midstream around the chip manufacturing device package, downstream applications and supporting materials and equipment in four areas, to create a complete industrial system, to build one hundred billion LED industry, the construction of Nanchang Optics Valley".

Right now, the scale effect of Jiangxi LED industry is being enlarged. The total investment of 1 billion yuan of the British integrated circuit industry projects have been settled in Nanchang, after the completion of the