With the increasing use of mobile phone flash, large and medium size LED display light source modules and special purpose lighting systems. In the end, it will be extended to use in general lighting system equipment, and the high-power LED market using white LED technology will appear one after another. In terms of technology, the biggest challenge now is to enhance and maintain brightness. If the heat dissipation capacity is enhanced, the market has great potential.
In recent years, with the rapid development of LED production technology, its brightness and life extension have been extended, and production costs have been greatly reduced, rapidly expanding the LED application market, such as consumer products, signal systems and general lighting, so its global market scale growing up very fast. In 2003, the global LED market was about 4.48 billion US dollars (high-brightness LED market was about 2.7 billion US dollars), which was 17.3% higher than that in 2002 (the high-brightness LED market grew 47%). It is still growing in the mobile phone market. It is predicted that there will still be 2004. The growth rate of 14.0% can be expected.
In terms of product development, the development of white LED has become a key development project for manufacturers. There are currently four main methods for manufacturing white LEDs:
First, blue LED + yellow fluorescent powder (such as: YAG)
Second, red LED + green LED + blue LED
Third, UV LED + red / green / blue fluorescent powder
Fourth, blue LED + ZnSe single crystal substrate
At present, white LEDs used in backlights such as mobile phones, digital cameras, and PDAs are formed by blue single crystal and YAG fluorescent. With the application of mobile phone flash, large and medium size (NB, LED-TV, etc.) display light source modules and special-purpose lighting systems, the application has gradually increased. In the end, it will be extended to use in general lighting system equipment, and the high-power LED market using white LED technology will appear one after another. In terms of technology, the biggest challenge now is to enhance and maintain brightness. If the heat dissipation capacity is enhanced, the market has great potential.
ASM has more than 20 years of experience in R&D and production of automated optoelectronic component packaging equipment. There are many ways to improve LED brightness in the industry, from chip and package design to packaging technology to improve heat dissipation and increase luminous efficiency. . In this paper, there are some specific proposals for the development of China's LED equipment industry. For the discussion of netizens.
Develop specific proposals for China's LED packaging industry
It is recommended that the state support materials and process equipment as the basis and driving force for development in supporting LED technology and industrial development. In the process of developing LED technology and industry, it is recommended that China take the road of “introduction, digestion, absorption, innovation and improvementâ€. The specific plan is as follows: Under the support of the state, through the joint efforts of the state, LED manufacturing enterprises and equipment and materials manufacturing, a Chinese LED equipment, materials, manufacturing and application complex with incubator function will be established.
In order to master and improve the equipment manufacturing level in a short time, and promote the development of China's high-end LED industry, it is recommended that the joint fund raise funds (50% in the country, 15% in the equipment development unit, 15% in the chip manufacturing and packaging technology research unit, LED chip). Manufacturing and packaging companies 20%) to build a complete LED chip manufacturing and packaging demonstration production line. The demonstration line has been responsible for solving the equipment development and process test, LED product manufacturing process technology research and verification, and realizing the complete supply of process technology and process equipment. Any unit participating in the demonstration construction has the right to use the production line for relevant products, technology and industrialization research and testing without charge, especially the LED product production unit, which can obtain relevant research and industrialization results preferentially.
For this demonstration line, a three-step strategy was implemented to finally realize the commercialization and localization of LED production equipment.
The first step: use two years or so to localize some key equipment (the state gives certain bonus support); for ordinary equipment that has a certain foundation in China and has cost-effective advantages, it uses the principle of market competition and adopts the admission system. The best matching (through the development of standards); for some of the more difficult equipment that can not be domestically produced in the short term, the state should arrange for the research and development of production prototypes.
The second step, from the third year of implementation of the program, the first two types of equipment involved in the first step focus on solving the problems of adaptability, production efficiency, reliability, appearance and cost of the production process, with domestic support and batch Supply capacity, research and development equipment to complete the commercialization of production prototypes (gamma-type machine).
In the third step, from the fifth year of implementation of the program, all the equipment involved in the first and second steps have international competitiveness. In addition to meeting domestic demand, it must occupy a certain international market; the equipment can meet industrialization. Production requirements and volume supply capabilities.
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