LED: from ten billion to billions across

2009 sales output value of China's LED industry reached 60 billion yuan, an increase of more than 30% against the market trend, China has become the world's fastest LED industry development area.

Held in April 2010 in Germany (Light+Building) International Lighting and building technology and equipment exhibition, is the world's largest lighting and electrical construction exhibition, is the world lighting industry leader.

Zhejiang lighting society vice president, Hangzhou everfine photoelectric information limited company chairman Pan Jiangen on the "Zhejiang" reporter said: "this exhibition is more than 95% of the company's LED products, while more than 70% exhibit based on LED. I believe that after ten years is the world of LED. "

LED industry is rapidly becoming one of the most popular industry. 2009 China's LED industry sales value reached 60 billion yuan, an increase of more than 30% against the trend, so that China has become one of the fastest growing areas of the global LED industry. China's LED market, is currently in the billions of dollars from the magnitude of the magnitude of a major leap in the process.

LED industry "cake" bigger fast

As a kind of electrical energy into light energy semiconductor light emitting device, LED (light emitting diode) power consumption is only 1/10 of incandescent lamp, fluorescent lamp 1/3, and the service life is 100 times that of incandescent lamp. Compared with the traditional light source, LED does not use mercury, lead and other pollution elements, but also can be recycled, is a green light source.

In low carbon economy and building energy conservation and environmental protection ideas, China's LED industry rapidly expand the "cake".

Analysis of 2010, related institutions, China LED lighting industry output value will exceed 150 billion yuan, compared to 2008 doubled. Is expected to be the fastest in 2015, LED lighting market share in China will reach 20%, driven by industrial scale of up to $500 billion, China will enter the world's top three LED lighting market.

In October 2009, the national development and Reform Commission, Ministry of science and other six ministries jointly issued the "semiconductor lighting industry development opinions" put forward a clear goal: by 2015, the output value of the semiconductor lighting industry with an average annual growth rate of around 30%; functional lighting reached about 20%; the ability of independent innovation of enterprises increased significantly, the upstream chip scale production enterprises 3-5 industry concentration significantly increased. With its own brand, the backbone of the backbone of the market impact of more than 10 companies to achieve annual saving of 40 billion kwh, equivalent to an annual reduction of carbon dioxide emissions of 40 million tons.

Upstream is Chinese LED industry weakness"

Currently formed in Asia, North America, Europe's three largest regional center for the LED industry in Japan, TOYOTA, Nichia American Cree, Lumileds synthesis, Osram and the European patent for core technology competition. U.S. and Japanese companies in the epitaxial chip, chip technology, equipment has a monopoly advantage, European companies in the field of application of technology advantages.

From 1999 to 2009, in the United States for the LED related patents 3312, Japan ranked first, accounting for about 50% of the United States accounted for 30%, second, Chinese Taiwan third, 11%.

Japan is the world's largest producer of LED industry, accounting for 50% of market share, the trend is almost a pointer in LED industry. China's Taiwan LED industry revenues accounted for 17% of global revenue, second only to Japan, ahead of South Korea, Europe and the United states. Taiwan is the world's consumer electronics production base, but also the world's largest LED downstream packaging and midstream chip production.

And China's Taiwan region, mainly focusing on the development of packaging and assembly, production accounted for first in the world, output ranked second in the world.

LED industry chain mainly includes four parts: LED epitaxial wafer, chip manufacturing, packaging and product application, in addition to the related industries. Industrial chain structure as shown below:

In LED industrial chain, LED epitaxial wafer and chip industry accounts for about 70% of the profits, LED packaging accounted for about 10-20%, but the LED application probably accounted for 10-20%. With it is that the LED industry chain from upstream to downstream industry barriers to entry gradually reduced.

The substrate material manufacturing using a LED chip is usually high quality sapphire or silicon carbide, GaAs (Shen Huajia), is a kind of composite crystal epitaxial growth of semiconductor. At present, the growth of AlInGaP on GaAs substrate is a relatively mature technology, it is expected that the future GaAs substrate will be a reliable choice of substrate materials. Because of the good performance of the sapphire substrate on the large size substrate, with the continuous efforts of the manufacturers to the development of large size substrate technology, will gradually occupy a larger proportion.

Epitaxial wafer is the key technology of LED manufacturing, widely used in metal organic chemical vapor deposition (MOCVD) method. At present, the major manufacturers in the global MOCVD for AIXTRON of Germany and the United States VEECO company, the former accounted for 60%-70% share of the international market, which accounts for 30%-40%, Japan NipponSanso production equipment limited to domestic sales in japan.

After epitaxial growth, the middle reaches of the chip design and processing manufacturers of device structure and process design according to LED requirements, through the diffusion and epitaxial wafer metal coating, and lithography, heat treatment, metal electrode formed; the substrate thinning after polishing, cut into small thin LED chip.

Chip package to chip paste and welding wire rack, through testing, sealing, packaging into various products. White LED chips also need to be injected into the sealant to produce white phosphorus. In principle, the smaller the chip, the more difficult the packaging technology