From laboratory to industrialization, from research and development to industrial clusters. The silicon substrate led project has not lacked attention for a long time. Nowadays, this independent innovation project marked with “Nanchang†brand will break through the foreign patent barriers in the “black horse†posture and incite the 100 billion-level market in the world.
Taking advantage of this, it is expected that by 2020, the main business income of the LED industry in our province is expected to exceed 100 billion yuan, of which the entire industrial chain of silicon substrate led technology will reach 50 billion yuan.
Break through patent barriers
Seize the global market
Speaking of the "silicon substrate led" technology, you may feel strange. However, if the lighting in the public area of ​​Nanchang Metro Line 1 is “silicon substrate ledâ€, perhaps everyone will understand.
"Silicon substrate led" not only illuminates the night sky of Nanchang, but also has "silicon substrate led" lighting products in the United States, Germany, Italy, Chile and other countries.
"We are now exporting a large number of street lamps, tunnel lights, etc. We have just confirmed some time ago that we have a 40,000 mark in India. We take advantage of the ability to enter the world market and have intellectual property rights. Now It is cooperating with Philips and will select 100 cities abroad to promote products through emcppp. At present, our products are positioned in foreign markets, domestic high-end markets, and import substitution markets.†Jingneng Optoelectronics Min said.
Whoever masters the core technology will master the market initiative.
Wang Min told the author: "With our downstream technology products, customers can sell 5% more when they export products. This is our advantage. Some sapphire substrates have no independent intellectual property rights, customers are When the product is exported, it will be worried about being sued."
In fact, the concerns of these customers are not unreasonable. Before the birth of silicon substrate led, the global semiconductor lighting field mainly consisted of a sapphire substrate technology monopolized by Japanese companies and a silicon carbide substrate technology monopolized by American companies.
In order to seek market and profit, the patent war in the LED industry has always been one after another. At present, there are hundreds of patent litigation cases for global LED technology. Most of the prosecution parties are mainly international companies, and they frequently launch patent wars to check and balance future competitors.
From a strategic perspective, the silicon substrate led technology has fundamentally avoided the patent dispute in China, and it also marks the "China Core" made by Nanchang to the world stage.
At present, Jingneng Optoelectronics has applied for or possessed more than 330 international and domestic patents around the silicon substrate led technology, and has granted 147 patents, including 47 international patents.
The US economic advisory agency ihs predicts that by 2020, the global LED lighting market will reach 100 billion US dollars, which has formed a three-pronged industrial distribution and market competition pattern in the United States, Europe and Asia. Among them, by 2020, the silicon substrate led market share will reach 40%.
In terms of going global, with the implementation of China's “One Belt, One Road†strategy, the LED lighting market along the country is a major opportunity for China's LED companies. Liu Shengping, chairman of the China Lighting Association, said that the silicon substrate led application products can be exempted from the patent disputes for export companies, thus taking the lead and winning the advantage. "We believe that the silicon substrate led technology with independent intellectual property rights will help promote China's manufacturing to China's creation; the high-power silicon chip with core competitiveness will surely shine in the lighting field at home and abroad."
Create an industrial cluster
Leading industry development
Compared with the development history of two foreign technology routes for more than 20 years, the silicon substrate led technology has only taken ten years from the beginning of research and development to the formation of industrial clusters, constantly improving, constantly surpassing and moving forward.
Since 2012, Jingneng Optoelectronics has launched a “counter-attack†with a sales growth of nearly 100% for three consecutive years. At present, based on the led technology of silicon substrate, with crystal energy optoelectronics as the core, through the vertical integration of upper, middle and lower reaches, a led industrial chain of silicon substrates with 12 enterprises has been formed in the country, with cluster size and radiation-driven effect. obvious. In 2012, the output value of the led industrial chain of silicon substrate was 500 million yuan; in 2013, the output value of the industrial chain exceeded 1 billion yuan; in 2014, the total industrial chain realized output value of 2 billion yuan; in 2015, it is expected to reach 5 billion yuan, and in the next three years, it can form 100 The output value of billions.
An industry with core technologies can sustain healthy development. In an interview with reporters, Dou Linping, secretary general of the China Lighting Society, said that if more companies join the LED substrate industry chain, they can form high-end equipment, raw materials, epitaxial chip manufacturing, packaged device modules, and lighting applications. The core of the lighting industry cluster.
Work at a high place and make a new place. As a key support industry for eight strategic emerging industries in our province, the LED industry has high hopes. The provincial party committee and the provincial government proposed that by 2020, the province's LED industry's main business income will quadruple on the basis of 2015, the total amount will exceed 100 billion yuan, and strive to account for 15% of the country, of which Nanchang reaches 50 billion yuan; The entire industrial chain of silicon-based LED technology has reached 50 billion yuan.
Among them, the establishment of a complete industrial system has become the focus. According to the “Implementation Plan for Building Jiangxi Liang Industrial Base in Nanchang Optics Valley†issued by the provincial government, the province will vigorously develop LED epitaxial materials, chip manufacturing and device packaging in the future, comprehensively promote application technology and product development, and continuously enhance supporting capabilities. Promote the establishment of organic links between upstream and downstream enterprises, and build a complete industrial system based on silicon-based led original technology.
At the same time, it will expand open cooperation and promote the outward radiation of led technology on silicon substrates. Adopting the mode of silicon substrate led technology cooperation for industrial development, through patent licensing, mergers and acquisitions, capital injection, etc., promote the silicon chip led chip manufacturing, device packaging technology and products to spread across the country, and rapidly expand the silicon substrate led technology products. Market share.
According to Sun Ke, vice president of Jingneng Optoelectronics, the LED chip on the silicon substrate is not only a product, but also the leader in the development of the entire industry chain. Under the background of actively creating “Nanchang Optical Valley†in Jiangxi Province, we will integrate resources, rapidly enlarge the LED application and industry of silicon substrate, and form a silicon substrate led industry with independent intellectual property rights and core competitiveness, which will help in the field of lighting. Realizing the move from Chinese manufacturing to Chinese creation, and taking the lead in the fierce global competition, thus further driving the construction of “Nanchang Optical Valleyâ€.
Large size silicon substrate led
More widely used in the future
When talking about the silicon substrate technology, how to "eat the tiger's mouth", in the future, when competing with the sapphire substrate and the silicon carbide substrate, Fu Wei, vice president of the crystal energy photoelectric epitaxy center, introduced that from the perspective of the substrate, silicon as a kind of The substrate material has the advantages of low cost, large size, high quality, and electrical conductivity compared with sapphire and silicon carbide.
In addition, from the device point of view, the LED chip using silicon substrate technology has good heat dissipation, good antistatic performance, long life, high current density, high power LED illumination, and single-sided light output from silicon chip. The characteristics of good light directivity and good light quality make it extremely advantageous in the fields of LED mobile phone flash, automobile lighting, high-end indoor lighting and other requirements for light quality and directionality.
At the same time, the silicon substrate led technology can well take advantage of the large size of the silicon substrate, using the automation equipment of the integrated circuit industry, and the combination of the LED production line, greatly improving the maturity of the existing LED industry, and rapidly forming a scale effect, so that led The overall cost of lighting has dropped by 30%.
"The development trend of the LED industry today is a large-size substrate. The current price of a 6-inch sapphire substrate is more than 200 US dollars. In comparison, a 6-inch silicon substrate is only 160 yuan. The price gap of 8 inches is even larger." He said that if the silicon substrate achieves a larger size, the cost advantage will be more obvious. The price per unit area of ​​the large-size silicon substrate will decrease, while the price per unit area of ​​the large-size sapphire substrate will rise. The cost advantage will undoubtedly become one of the important driving factors for the production of LED chips from sapphire or silicon carbide substrates to silicon substrates.
In addition, the crystal photoelectric technician told the author that the chip is most afraid of heat, and its temperature is reduced by half for every 10 degrees Celsius increase in temperature. The heat dissipation capability of the silicon substrate is more than three times that of sapphire, so that the heat generated in the work can be transferred to the silicon substrate to control the temperature of the chip.
The advantages of led technology on silicon substrate attract more and more followers in the industry, such as South Korea's Samsung, Japan's Toshiba, Germany's osram and other well-known led companies. The follow-up of these international factories will bring the world's silicon substrate led technology to flourish. machine.
Speaking of the future of silicon substrates, Chen Zhen, vice president of Jingneng Optoelectronics, said that he hopes to change the technology of the LED industry in essence by introducing silicon substrates, making ganled upgrade from a semi-automatic, labor-intensive industry to modern integration. The circuit technology is quite high in the automation and high precision semiconductor industry. It is hoped that the new technology will bring both low cost and high control precision, and eventually form a standard manufacturing industry.
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