China "core" - silicon substrate LED technology won the National Technology Invention Award

In January 8, 2016, the "silicon substrate of high light efficiency of GaN based blue light emitting diode project" won the first prize of national technological invention, "China core", a proud people, shocked the world.

Big blue round silicon on the palm, a layer of "growing" a variety of semiconductor materials, two thousand mm square chip neatly distributed among them. By the electric light, a mysterious blue chip light projected onto the phosphor, suddenly soft white light with open shot. It was the birth of the little blue light emitting diode silicon substrate, the Chinese become the world after Japan and the US third master blue LED independent intellectual property rights technology state, only the silicon substrate LED chip production countries.

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, in the state of silicon LED Engineering Technology Research Center, the main project is completed with a tiny 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, a thick glass, looking at the shiny chip 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.

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".

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".

Innovative use of silicon instead of traditional sapphire or silicon carbide as 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.

Under 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.

The future will be in the city, architecture, and various lighting applications will be a lot of silicon substrate LED lighting, so that China's core to illuminate the world!