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Diode-Pumped Solid-State UV Lasers Improve LED Sapphire Wafer Scribing

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Diode-Pumped Solid-State UV Lasers Improve LED Sapphire Wafer Scribing

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  • Author: Rajesh S. Patel, Ashwini Tamhankar, Tim Edwards
The green movement, energy conservation efforts and global warming headlines have made the world aware of the need for more energy-efficient lighting alternatives. The range of applications for high-brightness LEDs continues to expand. Laser scribing of wafers used to make LEDs is helping lead the way to great advancements in the area of optoelectronic devices used in LCD backlighting for cell phones, televisions and touch-screen displays. Most exciting is the advent of white LEDs for illumination.

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