The United States and the European Union in
2007, gradually began to LED to replace the traditional fluorescent
lamps with mercury, so the development of new lighting equipment has
become a national development goals, while white LED is the current
development focus. In order to heat the point of view, whether it is
composed of light source using multi-satellites LED module or use large
grain process, must be dealt with in the LED package, a considerable
concentration of heat. If the future can not handle heat dissipation,
resulting in the impact of high temperature on the LED, in addition to
a variety of packaging materials to different expansion coefficients
between a reliability problem, the grain of the luminous efficiency
will be significantly decreased with the heat, light color output is
also of the affected and caused significantly shorten the life, so how
dispersed LED lighting components, centralized heat, become the
important task LED lighting technology.
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