Pay close attention to the key industrial technology breakthroughs in LED industry

For many villagers in Shigatse area of Tibet in 6 counties and 42 villages, new year's day and in the past 8 months ago -- here's solar LED (light emitting diode) lights, the snowy plateau festival night added light.

We also clearly remember that when these minority villages without electricity, the villagers were happy at night under the street lights for a long time do not want to leave......

An average of 4500 meters above sea level, up to a maximum of 6000 meters; frozen soil layer of 1 meters; the maximum daily temperature difference of + + + - 32 degrees C, minus 30 degrees centigrade still work normally, UV super...... High altitude, high temperature and low temperature on the structure of the LED material, packaging technology, light color quality and drive control power supply, and so put forward high requirements.

Today, over the past six months, street lights up to 100%. 863 scientific research plan "semiconductor lighting project" major projects for the first time in the Tibet area of the demonstration application, not only to produce a satisfactory answer, but also created the world focus on the area more than 4500 meters above sea level to install hundreds of sets of solar LED street lamp records.

LED, illuminate the long road, up China.

8 years time, China's semiconductor lighting industry from scratch, and gradually grow. The key technology of industrial transformation and upgrading have made a breakthrough, the rapid increase in the industrial core technology research and development and innovation ability, one from the upstream to midstream epitaxial chip packaging, to the downstream integrated application of complete technological innovation chain and have strong competitiveness in the international market industry chain is formed.

Seize the opportunity to deploy research and development around the industry needs

Today, LED devices for white light illumination are based on the fabrication of semiconductor nitride materials. The concept of this kind of LED device was put forward in the 60s of last century, but because of the limitation of the preparation technology, it has been developing slowly.

"Until the last century in the early 90s, Japanese scientists broke through the low temperature buffer layer and P type doping two problems, which can be used for lighting application of nitride blue LED really was created, then raised the research upsurge of nitride materials in the world, the industrial application has entered a rapid development stage. Li Jinmin, director of the Institute of semiconductors, Chinese Academy of Sciences, said.

As a new type of lighting technology after incandescent lamp, fluorescent lamp, the application advantages of LED with other traditional lighting sources can not be compared, it has the characteristics of low power consumption, long service life, no mercury pollution, rich color, strong regulation, showing a strong vitality and rapid development speed, known as lighting light source and light industrial revolution. Semiconductor lighting is generally considered to be the most potential strategic emerging industries in twenty-first Century. The United States, the European Union, Japan, South Korea and other developed countries in the past 10 years have been based on national strategy to promote the development of semiconductor lighting technology and industrial development.

But 8 years ago, Chinese semiconductor lighting upstream industry development is almost a blank, the downstream application has just started, power chips all rely on imports, small-scale enterprises, the lack of industrial technology, the whole industry sales income of less than 10 billion yuan.

In order to seize the opportunities of new industries and improve the international competitiveness of the new generation of semiconductor materials and technology, from the "fifteen", the Ministry of science and technology to support the development of semiconductor lighting technology and industry. In 2003, the former Ministry of information industry, the Ministry of science and technology, Chinese Academy of Sciences, Ministry of education, the Ministry of construction, Light Industry Association jointly established the national semiconductor lighting project coordination leading group, and start the national semiconductor lighting project "emergency, through scientific research plan project deployment, the key technology to solve the recent special lighting market in urgent need of industrialization. The long-term cultivation of ordinary white light lighting industry as the goal, to promote the development of the application, promote the formation of Chinese semiconductor lighting industry with core competitiveness.

When it comes to technology research and development, Li Jinmin has a deeper understanding: we develop science and technology, most of the past is to go from the early free exploration to basic research to the application of research, and finally to the path of Engineering Chemical industry. "But in Li Jinmin's view, this is not entirely applicable to the field of semiconductor lighting. "It is not only the technology to promote the development of the industry, in fact, the urgent needs of market applications and industries, and strongly drive the continuous improvement of semiconductor lighting technology. "

He repeatedly used to describe the development of semiconductor lighting technology and industrial development trend. "In this industry, the update cycle is 3 months or even 1 months, every month there are new things, both new technology, new research and development, but also new products, new applications. "People continue to pursue higher light efficiency, more comfortable lighting experience, the consumer demand and fierce competition in the international peer technology research and development, including Li Jinmin, let researchers feel the hitherto unknown challenge.

Therefore, in the national science and technology program at the beginning of design, to take full account of the industry and the market demand, in order to break through the technical part of the core key, to promote substantive cooperation on the upstream and downstream industry chain as the goal, according to the deployment of all aspects of Technology innovation. The design and organization of scientific research project was passed into the enterprise full investigation, project design and industry in close connection with the urgent needs, fit the direction of enterprise development, is the main battlefield for the development of the national economy. National semiconductor lighting engineering research and development and Industry Alliance Secretary General Wu Ling memories.

August 2006, the Ministry of science and technology in the "fifteen" national semiconductor lighting project implementation basis