CITIZEN electronics improved high output power white LED

In will be closed on March 10, 2006, held at the Tokyo BigSight Exhibition Center "JAPAN SHOP 2006", CITIZEN electronics show known as the world's highest level of luminous efficiency and high power output beam of white light emitting diode (LED) improved CL - L100 series ". This high output power white LED is currently in the reliability test phase (the company's commentator), scheduled for mass production in 2006. The company in order to mass production as the goal, is committed to the realization of the white LED packaging methods and processing simplicity.

Packaging methods, the use of a commercially available connector will be a number of white LED electrical connection, and the use of single-sided printed circuit board. Because the connector can be used commercially, the connection is more convenient. Therefore, the thickness of the Cu substrate which is arranged below the white LED can be increased from 0.6mm to 0.8mm, thereby improving the mechanical strength. Prior to the pursuit of thin design, using 0.2mm ~ 0.3mm copper substrate, but there is a lack of mechanical strength by external pressure problems.

The display of the product luminous efficiency of 70lm/W. White LED is expected to be used in the blue LED chip for high-performance products, luminous efficiency can be increased to 90lm/W in 2006.