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Deposition Sciences Inc. - Difficult Coatings - LB - 8/23

How Temperature Affects Silicone Encapsulants in High-Brightness LED Applications

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Several factors must be considered, but an appropriate packaging material likely exists for your hot application.

Randall Elgin, Bill Riegler and Rob Thomaier, NuSil Technology LLC

Historically, high temperatures have negatively affected the function of LED chips; however, recent designs from companies such as Philips Lumileds Lighting Co. reportedly perform at temperatures as high as 185 °C without compromising output. The transition from low- and midpower LED chips to high-power devices has challenged packaging engineers to seek materials that function at higher temperatures. As part of ongoing research into the effects that high temperatures have on silicone packaging materials — which range from the impairment of physical properties to the degradation of optical...Read full article

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    Published: April 2007
    Glossary
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    Basic SciencechemicalsConsumerFeatureshigh-power devicesindustrialLED chipsMicroscopyphotonicssilicone

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