Light Emitting Diodes (LEDs) have been around for years, primarily concentrated in such markets as cell phones, PDAs and other consumer electronics. Since most of these products have relatively short lifecycles, protecting LEDs wasn’t a primary concern because the product would fail or become obsolete long before the LED failed.Today, as technological advancements in LED design and processes are continually boosting light output to rival incandescent, fluorescent, and even halogen light sources, the need to protect the LEDs against heat build-up is greater than ever before.Three and five-watt LEDs are now commonplace, and industry experts are predicting 10-watt LED availability in the next few years. Power LEDs of greater than one-watt are almost always surface mounted devices.This is because the axial leads to the die in a leaded package do not conduct enough heat away from the LED. Chip-on-board (COB), ceramic submounts and other thermally efficient packages are emerging as the standard thermal management packaging solution for Power LEDs.
Many of the world's top LED manufacturers recommend Thermal Clad for use with their Power LEDs. Link to Avago, Cree, Lite-on, Lumex, Lumileds, Nichia, Osram and Seoul Semiconductor for additional information.
A Power LEDs light output and life expectance are directly attributed to how well the LED is managed thermally. As the LED generates heat, the dielectric of the Bergquist Thermal Clad insulated metal substrate quickly transfers it to the aluminum base, significantly improving the LEDs performance.