Article Abstracts | March 2007
The complete article appears in the March 2007 issue of Photonics Spectra. If you do not have a copy of this issue,
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High-Performance Silicone Materials for High-Brightness LEDs
Ongoing advancements pave the way for high-power LEDs in broader application areas.
by Linda Kastilani, Dow Corning Corp.
High-brightness LEDs are increasingly being used in applications such as signs and displays, cell phone flash modules, automotive lighting and general illumination. Newer applications, however, such as solid-state lighting, and backlighting for flat panel LCD monitors and TVs, require higher-brightness LEDs that also run hotter and operate at higher wavelengths, thus placing new demands on packaging materials.
As a result of greater challenges being placed on materials, silicones are emerging as a material of choice for high-brightness LED packaging. Silicones deliver electrical, mechanical and thermal performance unmatched by organic formulations, and they have a long history of service in semiconductors and device packaging. They also are well-known for their stability, longevity and stress-relieving properties...