In recent years, with the rapid development of LED production technology, the brightness of its LED has been improved and its lifespan has been extended, and the production cost has been greatly reduced, rapidly expanding the LED application market, such as consumer products, signal systems and general lighting, and its global market scale. growing up very fast. In 2003, the global LED market was approximately US$4.48 billion (approximately US$2.7 billion in the high-brightness LED market), 17.3% more than in 2002 (47% in the high-brightness LED market), and continued to grow on the mobile phone market. It is predicted that there will still be in 2004. The growth rate of 14.0% can be expected.
In terms of product development, the development of white LEDs has become a key development project for manufacturers. At present, there are mainly four methods for manufacturing white LEDs:
First, blue LED+ yellow fluorescent powder (such as: YAG)
Second, red LED + green LED + blue LED
Third, ultraviolet LED + red / green / blue fluorescent powder
Fourth, blue LED + ZnSe single crystal substrate
White light LEDs used in mobile phones, digital cameras, PDAs and other backlight sources are made of blue single crystal grains and YAG fluorescent light. With the mobile phone flash, large and medium-sized (NB, LED-TV, etc.) display light source modules, as well as the application of special lighting systems gradually increased. In the end, it will be extended to the equipment used in general lighting systems, and the high-power (HighPower) LED market using white LED technology will gradually emerge. In terms of technology, the biggest challenge at present is to enhance and maintain brightness. If the cooling capacity is further enhanced, the market has great potential for development.
ASM has more than two decades of experience in the development and production of automated optoelectronic component packaging equipment. There are many ways to improve LED brightness in the industry, from the chip and package design level to the packaging process with the goal of improving heat dissipation and increasing luminous efficiency. . In this article, there are some specific proposals for the development of China's LED equipment industry. For users to discuss.
Development of specific proposals for China's LED equipment 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 follow the path of "introduction, digestion, absorption, innovation, and improvement." The specific plan is as follows: Under the support of the state, through the tripartite alliance of the country, LED manufacturing companies and equipment and materials manufacturing, establish China LED equipment, materials, manufacturing and application complex with incubator function.
In order to grasp and improve the level of equipment manufacturing in a short period of time and drive the development of China's medium-to-high-end LED industry, it is recommended that joint ventures raise funds (50% of the country, 15% of equipment development units, 15% of chip manufacturing and packaging technology research units, LED chips 20% of manufacturing and packaging companies) Build a complete LED chip manufacturing and packaging demonstration production line. The demonstration line to solve the equipment development and process testing, LED product manufacturing process technology research and verification, to achieve the complete supply of process technology and process equipment for any. All units participating in the demonstration construction have the right to use the production line for research and testing of related products, technologies, and industrialization. In particular, LED product production units can preferentially receive relevant research and industrialization achievements.
For this demonstration line, a three-step strategy was implemented to eventually realize the commercialization and localization of LED production equipment.
The first step is to use some two years or so to localize some key equipment (the state grants certain bonuses to support); for ordinary equipment that already has a certain foundation and a cost-effective advantage in China, it uses market competition principles and adopts an access system. The optimal matching (through the formulation of standards); for some of the more difficult and short-term equipment that cannot be localized, the state should arrange for research and complete the development of production prototypes.
The second step, starting from the third year of implementation of this program, the first two types of equipment involved in the first step will focus on solving problems such as the adaptability, production efficiency, reliability, appearance and cost of the production process, with domestic support and batch production. Supply capacity, research and development of equipment to complete the production of prototype commercialization (γ-type machine).
The third step is that from the fifth year of implementation of this plan, all the equipment involved in the first and second steps have international competitiveness. In addition to satisfying domestic demand, they must occupy a certain international market; Production requirements and bulk supply capacity.
Developing China's LED Equipment Industry
With the mobile phone flash, large and medium-sized LED display light source modules and even the use of special purpose lighting systems are gradually increasing. In the end, it will be extended to the equipment used in general lighting systems, and the high-power (HighPower) LED market using white LED technology will gradually emerge. In terms of technology, the biggest challenge at present is to enhance and maintain brightness. If the cooling capacity is further enhanced, the market has great potential for development.