Packaging technology into China's LED lighting innovation breakthrough

LED industry in recent years gradually from the lighting revolution in the hustle and bustle of calm down, the development of China LED industry has become more and more mature and rational. The light emitting diode (LED) light emitting efficiency in the past ten years has increased dramatically, from the past 20 lumens per watt recently increased to 150 lumens per watt, the current high power LED has been reached for large-scale general semiconductor lighting point. And semiconductor lighting have such as energy saving and environmental protection, etc. the main long-term advantages, is a new generation of lighting is very worthy of promotion, while the LED package is more than the performance of the key technology, it is also the key point of the LED industry needs to be China.

Recently, a reporter from the fair Electronics Show in the era of creative understanding, in order to help the local LED lighting enterprises to seek breakthroughs in key technologies, to get rid of the lighting revolution and the western enterprise technology gap on the drag, in the twelfth Fair Electronic Exhibition (ELEXCON2010) during the creative era will be invited in the "Professor Li Shiwei from the Hong Kong University Science & Technology high the brightness of LED packaging workshop", the FAQ, introduces the evolution and development trend of lighting, and discusses the LED package structure, teaching include chip interconnect technology, phosphor coating, plastic process, and heat dissipation materials and thermal management; optical design, optical analysis, LED and optical detection technology, will also give the details. In addition, this workshop will also explore the application of high brightness LED arrays and modules in general and special lighting engineering, and analyze the relevant cases. The course will cover the prospects and technical roadmap for semiconductor lighting and discuss issues related to patents.

LED industry chain is divided into the upper, middle and lower reaches, are LED epitaxial chip, LED packaging and LED applications. As a link between the LED industry chain, LED packaging industry plays an important role in the whole industry chain. In the industry wide attention in the field of LED lighting, packaging technology is particularly important. Packaging technology can directly affect the quality of LED products, good packaging and heat dissipation technology can make the LED work at a junction temperature of 60 degrees Celsius, life can be more than 50 thousand hours. The poor packaging technology will shorten the life of more than half LED.

According to the research firm iSuppli forecast, 2006 -2012, the global LED market sales compound growth rate of about 14.6%, and the future of the emerging field of large size LCD backlight and automotive lighting and general lighting applications, LED will stimulate accelerated growth, is expected to 2012, LED market will reach $12 billion 300 million. At present, the improvement of the light efficiency of the chip makes the efficiency of the whole lamp of the high efficiency LED street lamp reach more than 80lm/W, which has the advantages of energy saving, and the reliability and the service life of the utility model need to be further improved by the packaging technology.

LED packaging technology is mostly based on the development and evolution of discrete device packaging technology, but it has a lot of particularity. In general, the core of the discrete device is sealed in the package, the main role of the package is to protect the core and complete the electrical interconnection. The LED package is complete the output signal, protection tube core work, output: the function of visible light, both electrical parameters, design and technical requirements and parameters of light, can not simply be discrete device packaging for LED.