With the official launch of the “National Semiconductor Lighting Project†jointly organized by the Ministry of Science and Technology, the Ministry of Information Industry and the Chinese Academy of Sciences, it marks the rapid development stage of China's semiconductor lighting (LED) industry. During the “Eleventh Five-Year Plan†period, how to develop semiconductor lighting (LED) industry and semiconductor white light lighting technology, how to promote energy conservation and emission reduction through technological innovation has become a topic of common concern to relevant government departments and industries. To this end, in order to implement the "Ningbo Semiconductor Lighting Industry Development Strategic Plan", to reflect the construction of Ningbo Semiconductor Lighting Industry Base, and to promote the rapid development of the industry, we organized relevant experts in the city to jointly compile the "Eleventh Five-Year" semiconductor lighting industry technology in Ningbo. Special Implementation Plan.
First, the background and meaning
Ningbo is one of the early start-up areas for the development and production of semiconductor lighting (LED) in China. After the “Ninth Five-Year Plan†and “Tenth Five-Year Plan†efforts, Ningbo Semiconductor Lighting (LED) industry has formed a good industry and technology based packaging segment (field The formation of scale, outstanding advantages of applied products, perfect supporting system, good prospects of related industries, strong supporting system, obvious mechanism vitality, and strong innovation power have formed the unique regional characteristics of Ningbo Semiconductor Lighting (LED) industry. With the development of high-brightness and high-power optical technology in the semiconductor lighting (LED) industry, its application steps from flashlights, garden lights, lawn lights, and ordinary landscape lights to high-power LED outdoor lighting, indoor lighting, and automobiles. Lighting, scene lighting, cabinets and home lighting, LCD industry development, further provide broad prospects for LED applications.
Ningbo's semiconductor lighting industry achieved rapid development in quantity and scale during the 10th Five-Year Plan period, and developed a series of application products suitable for domestic and international markets, especially LED flashlights, garden lights, lawn lights, landscape lights, solar LED lights, etc. In terms of products, the total production at home and abroad occupies an important position, and the export of products is at the forefront in China. The overall scale of the industry, product structure, technical level, production equipment and management level have all improved significantly. The development speed has maintained a growth rate of around 30% in recent years, far higher than the national average development level of 20%. By the end of 2006, the city had a total of more than 4,000 lighting manufacturers, according to 113 statistical calibers above the scale, completed sales of 4.35 billion yuan, accounting for 80% of the city's lighting industry sales, export delivery value of 3 billion yuan, profits and taxes 420 million yuan There are more than 200 patents in various patents. It is estimated that the economic indicators in 2007 will increase by more than 30% compared with 2006.
Although Ningbo has the location advantages, application advantages, supporting advantages, market advantages of the Yangtze River Delta, and there are rare opportunities for LCD backlight development, there are also some urgent problems and bottlenecks. If the industrial chain is not complete, lack of chip enterprises; the overall industry level is low, high-end LEDs still rely on imports; the scale of enterprises is generally small, lacking industry leading enterprises and famous brand products; industry and product structure are not reasonable enough, especially in application products The proportion of LED products is relatively low; the lack of core patent technology, the main export products have been plagued and restricted by foreign patents; the independent innovation capability is low, the network of production, education and research is not sound and extensive; the professional talents, especially the senior talents, are seriously lacking, and the technology research and development The investment is not high, and the industrialization of scientific and technological achievements is difficult; only a few enterprises and products have reached the domestic advanced level; the number of enterprises is large, and the cooperation and cooperation between them are not strong, leading to the overall small and large LED industry in Ningbo. Not a strong pattern.
In order to improve the research and innovation capabilities of Ningbo's semiconductor lighting industry, with government guidance, enterprises as the mainstay, market-oriented operation, technology innovation as the core, mechanism innovation as the guarantee, increase investment in major key technologies, concentrate efforts, break through the key points, and strengthen Collaboration, focus on the development of power-type high-brightness LEDs and application products, through the development of ultraviolet LED, GaN substrate, photonic crystal technology and other ways to greatly improve LED luminous efficiency, LED lighting system design and application integration technology; accelerate power type The industrialization of white light packaging and application products will enhance the level of GaN-based light-emitting devices in our city. During the “Eleventh Five-Year Plan†period, we will encourage the formation of core technologies and standards for semiconductor lighting with independent intellectual property rights through the implementation of a number of major industrialization projects and technical research projects. The city and district science and technology research and development funds and corporate funds will be used to build a public technology research and development platform and a testing platform training center to fully provide technical services such as public R&D, product testing, test analysis and talent training. Establish a semiconductor lighting business incubator to promote the rapid development of the industry.
In order to seize the historical opportunity of the global lighting industry revolution, China has become the world's semiconductor lighting (LED) product manufacturing base, which brings a rare opportunity for the development of Ningbo's semiconductor lighting industry, and also provides an overall upgrade for the semiconductor lighting industry in the city. Necessary conditions. In order to further accelerate the development of the semiconductor lighting industry, improve the overall level of the industry, and continuously improve the economic aggregate of the semiconductor lighting industry in Ningbo, it has truly become one of the pillar industries of Ningbo. The formulation of the special implementation plan for the “Eleventh Five-Year†semiconductor lighting industry is A fundamental guarantee for the implementation of the above objectives.
Second, the overall goal
Relying on Ningbo's existing industrial base storage superior location advantages, comparative cost advantages and keen insight into the international market, through the integration of the semiconductor industry and traditional lighting, to create a competitive advantage, fully integrated into the global industrial chain, high-end industries The level of semiconductor lighting industrialization base. Seize the historical opportunity of industrial development and transfer, introduce key core industries and technologies to improve and enhance industrial structure and layout, expand industrial scope and scale, enhance technological innovation and transformation capabilities, and build a core city of domestic and international semiconductor lighting industry.
Clear goals, highlight key points, and implement them step by step. Recently: continue to maintain the advantages in packaging and accessory parts and applications, accelerate the cultivation and development of a number of leading enterprises with strong competitiveness, and form a number of distinctive products with independent intellectual property rights in the packaging and several application fields. A key technology R&D center with continuous innovation capabilities. Long-term: strive to achieve industrialization in the field of white light general lighting, by attracting 2-3 epitaxial chip enterprises at home and abroad to settle down, fill the gaps of extension and chips, form a relatively complete high-end industrial chain and innovation chain, and build a domestically leading technology. The R&D platform will cultivate a group of enterprises with international and domestic competitiveness, form a number of brand products, master a number of core technologies, and build a domestic semiconductor lighting industry technology innovation demonstration base and a major application product manufacturing base.
Through this special implementation and technical research, the key technologies of the semiconductor lighting industry have made breakthroughs; cultivate and create a high-level, high-quality, scientific and technological innovation team; establish an effective independent innovation mechanism for effective allocation and utilization of scientific and technological resources, and make the industry innovative The ability has been greatly improved, and the gap with foreign advanced technology has been narrowed. The specific objectives are as follows:
By 2010, the annual output value of the lighting industry and related industries in our city will reach 35 billion yuan. Profits and taxes of 5 billion yuan, export delivery value of 18 billion yuan; improve chip, packaging, lighting, backlight, supporting five industrial chains; form 10 scale enterprises, of which annual output value of more than 5 billion, an annual output value of 1 -3 billion 3, with an annual output value of 5 to 100 million; 6 enterprise engineering and technology centers, 10 new national products; 5-10 brand-name products; 80 patents for approval and application, various technologies 50 results and 20 excellent scientific papers.
Through this special implementation, we will continue to increase technology research and development and innovation, and strive to make breakthroughs in key technologies in the field of LED backlights for LCDs in 2010, and form industrialization; Ningbo should become the main packaging, production, R&D and application of domestic semiconductor lighting industry. One of the bases; improve and form the scale of the epitaxial chip industry, increase the proportion of medium and high-end chips; build and improve new product research and development and industrial supporting systems, form a cluster effect, design and manufacture a number of LED products and lighting products that are close to the international advanced level, and build up Ningbo regional quality brand; create a technology innovation platform and comprehensive testing service platform; develop a batch of advanced process equipment and testing equipment, making Ningbo truly become a semiconductor lighting industry base with considerable scale and influence at home and abroad.
Third, the key common technology to be solved
1, power LED packaging technology
The development of power LED packaging technology will greatly affect the development of LED applications. The key technology is that the package structure should have high light extraction efficiency, low thermal resistance and reliability to ensure long-term efficient and stable operation of power LED. The main research contents: high light efficiency, high light color uniform package structure design and process research, including high light extraction efficiency lens design, phosphor coating amount, shape and uniformity control, chip photoelectric parameter coordination, light color parameter control and other issues; Low thermal resistance packaging technology and process research, including low thermal resistance interface material research, new heat sink structure and fabrication process research; high reliability packaging technology and process research, including material matching selection, package structure and process improvement; With the application of process technology and new technologies and new materials, the power level, efficiency and reliability of LED devices are effectively improved, and relevant corporate standards are formulated.
2. LED indoor and outdoor lighting fixtures and system integration technology
Facing the general lighting market, with the intelligent and scene lighting as the main body, the key technologies of industrialization of new intelligent semiconductor lighting systems have been developed to realize the transition of special lighting to general lighting for semiconductor lighting, and to promote the upgrading of traditional lighting technology. The main research content LED lighting application development, that is, research white light LED lamp structure, color temperature, optical system design, circuit, heat dissipation, sealing, waterproof, shockproof, anti-voltage shock, etc., to solve the problem of white LED application lighting. At the same time, the development of high-brightness LED lighting systems, drive and control systems, focusing on breaking through the system integration technology of indoor and outdoor power LED lighting, and formulating relevant corporate standards.
3, LED backlight application technology for LCD
To meet the needs of LCD modules to continue to grow brighter, lighter and thinner, LED backlights have replaced CCFLs as mainstream products. It is necessary to ensure uniformity of brightness in the panel, improve color rendering index, improve application life and achieve sub-regional color. There are major breakthroughs in technologies such as color adjustment. In addition, low-cost production technology is also a key industrialization technology to be solved by LED backlight modules. The main research contents include: optical design technology of three primary color (RGB) LED package and module assembly, thermal resistance and heat dissipation research and related process technology breakthrough, LED research and development of backlight module, system integration application technology.
The research breakthrough of this key technology is the support of the core competitiveness of LED backlight products for LCD production. The application of LED backlight technology is a potential highlight of Ningbo.
4, solar LED product integration technology
The combination of solar energy and LED is considered to be the most ideal combination of electric light sources, and different application methods have different requirements. The requirements for solar LED products are mainly reflected in product integration, energy utilization, outdoor reliability and automatic adaptation to environmental aspects. Improving the integration technology and intelligence level of solar LED products is the focus of LED product design and production. The key technologies are the integration technology of solar photovoltaic system and lighting-grade white LED; charging and discharging management technology of battery charging and discharging; driving circuit technology; maintenance-free technology of battery; automatic light control technology, enhancing product reliability and solar cell utilization efficiency, etc. And develop several relevant corporate standards.
Fourth, key projects
This special project sets 12 key projects in the four main research areas.
Key Project 1: Absorption, digestion and innovation of process technologies related to epitaxial chips in the upper and middle reaches
Research content: research and development of deep ultraviolet technology, GaN substrate, GaN epitaxial layer laser stripping, Si substrate epitaxy, large-scale power chip design, high power output, reduced thermal resistance and cost breakthrough technologies.
Expected goal: Based on the existing foundation, gradually turn to the research and development of GaN epitaxial chips, quickly fill the gaps in the middle and upper reaches of Ningbo's semiconductor lighting industry chain, and have high technical content, most profit, and impact on final product quality in the semiconductor lighting industry chain. The biggest key technology links to achieve breakthroughs, and strive to form products with independent intellectual property rights. The main technical indicators: blue GaN-based LED chip optical output power efficiency ≥ 350mW / W (350mA), working voltage 1000V. The performance of the LED chip package needs to meet the main technical indicators in the key project 2.
Key Project 2: Research on High Power LED Packaging Technology
Research content: Carry out research on independent intellectual property rights, develop new technologies suitable for the application products of our city, take enterprises as the main body, cooperate with universities and research institutes, and cooperate with domestic and foreign experts to study power LED equipment technology; Power LED preparation technology; reliability; new high-power white LED packaging materials and processes, including high-refractive-index optical materials and solder materials; electrostatic protection technology; photonic crystal structure high-power white LED technology.
Expected target: aiming at the middle and high-end market, focusing on the development of LED application products in the fields of lighting, backlight, automotive, etc., to meet the development needs of Ningbo's semiconductor lighting industry, and strive to become an important LED middle and high-end product packaging base in the Yangtze River Delta and China. The final product of intellectual property rights, and strive to declare 5 patents, forming 2-5 scale enterprises. Main technical indicators: LED module lumen efficiency ≥100lm/W (350mA), correlated color temperature 3000~10000K adjustable, color rendering index ≥75, thermal resistance ≤8°C/W, working life ≥50000 hours (the luminous flux drops to the initial value 70%).
Key Project 3: R&D and Industrialization Technology of LED Light Sources for Road Lighting
Research content: Through the research and development of special road lighting LED light source, this project has developed a single high-power special white light LED light source integrating secondary optical design, low thermal resistance, high light extraction rate and stable characteristics, and formed industrial mass production. The products are directly applied to road lighting, and eventually replace the traditional street lamps and widely occupy the market.
Expected target: This project promotes the wide application of semiconductor lighting in the field of road lighting, creating huge wealth for the society; forming the final product with independent intellectual property rights; forming a R&D base for road lighting LED light source; and cultivating a new R&D team with innovative capabilities .
Main indicators: The overall luminous efficiency of LED functional lighting fixtures ≥80lm/W; product color temperature difference ≤±300K; color rendering index ≥80; junction temperature rise ≤25 oC during normal lighting; 1000 hours room temperature rated current aging light Decay ≤ 3%; lamp efficiency ≥ 90%; drive circuit efficiency over 90%, power factor ≥ 0.95, harmonic ≤ 10%. Outdoor lighting meets technical requirements such as waterproof and dustproof.
Key Project 4: Development and development of serialization products for indoor space lighting
Research content: For the LED fluorescent lamp, the components of the chip-type LED are used to achieve uniform arrangement, good consistency and low thermal resistance. The computer optical simulation design is used to transform the "point source" of the LED to the "line source"; the high reflectivity is adopted. The optical part composed of the reflective material and the high light transmittance homogenizing material improves the actual light extraction efficiency of the lamp; the design and development of the intelligent controller.
Expected goal: Through the above-mentioned technology research and development, research and development of 2-3 kinds of industrialized products, and promote and apply in our city, replace the current indoor space lighting fluorescent lamps, energy-saving lamps and other products, to save energy, reduce costs, protect The purpose of the environment. Establish a set of LED fluorescent lamp and downlight production enterprise standards, and provide reference for national and industry standards. Apply for 3-4 patents.
Main indicators: design more than two LED functional lighting fixtures, the overall luminous efficiency ≥ 80lm / W; product color temperature difference ≤ ± 300K; color rendering index ≥ 80; normal lighting temperature rise ≤ 25 oC; 1000 hours room temperature Under rated current aging light failure ≤ 3%; lamp efficiency ≥ 90%; drive circuit efficiency over 90%, harmonics <10%.
Key Project 5: Development of Ultra Low Light Absolute White Light Diodes
Research content: In the LED package, the key technical problems that need to be solved for light decay, through the research and development of this project, change the traditional package structure, reduce the heat dissipation channel, so that the heat can spread rapidly; improve the packaging material and improve the heat resistance of the material; From the interface thermal resistance, packaging stress. Optimize and improve the material properties, etc., to achieve a target of 5% within 1000 hours of constant current 100 mA room temperature.
Expected target: The project can implement 2-3 invention patents and 1-2 utility model patents, and will change the current passive situation of high-end LEDs in China relying on foreign manufacturers.
Key Project 6: Research on LED Lighting and Integrated System Technology
Research content: This project intends to research and develop the key technologies of industrialization of new intelligent semiconductor lighting systems; study white light LED lamp structure, color temperature, optical system design, circuit heat dissipation, sealing, waterproof, shockproof, anti-voltage shock and other technologies to solve white light LED application lighting issues. At the same time, we will study the series of technical problems of high-brightness LED lighting systems and various characteristic lighting fixtures, and rapidly improve the level and technical content of the Ningbo lighting industry.
Expected goal: Through the implementation of this project, the proportion of LED lamps in Ningbo lighting fixtures will be increased to over 40% in the near future. Actively develop new products to enhance product grades and added value, enhance the comprehensive competitiveness of existing lighting industry, and ensure that Ningbo lighting industry maintains a strong competitive advantage in the semiconductor lighting industry, forming 3-5 large-scale enterprises with considerable influence in China.
Main indicators: the overall luminous efficiency of the lamp is ≥80lm/W; the product color temperature difference is ≤±300K; the color rendering index is ≥80; the junction temperature rises ≤25 oC during normal lighting; the rated current aging light decay is ≤3% at 1000 hours The luminaire efficiency is ≥90%; the drive circuit efficiency is over 90%. The luminaire has a bus or wireless stepless dimming function.
Key Project 7: Research on Application Technology of LED Backlight for LCD
Research content: This project develops LED devices for backlight modules; optical design technology for RGB LED packaging and module assembly, thermal resistance and heat dissipation research and corresponding process technology research; research on manufacturing and detection technology of new generation high-efficiency LED backlight devices; Secondary optical system design technology, thermal design technology research; power supply and drive circuit design, power consumption / heating technology, color / brightness feedback control system, active / regional system research; system integration technology research, and development of mass production detection technology and Efficient production process technology research, etc., to achieve new breakthroughs in the application of LED in the field of LCD.
Expected target: After the implementation of this project, it will not only form the LED application industry group with the most Ningbo characteristics, but also provide supporting guarantee for the further development of the LCD industry, and establish a relatively complete LED backlight R&D system to reach the domestic leading level.
Main Specifications:
1. Effective display size diagonal of 47 inches;
2. Color gamut: ≥105%;
3. Static backlight at 6500K color temperature, LCD panel center brightness ≥ 500Nits;
4. Uniformity: brightness 85% (nine points), chromaticity (color coordinates): ± 0.02;
5. Static backlight LED power
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