Epileds Technologies, Inc.

Cheng-Yu Chiu

Chun-Hung Chen

Ming-Sen Hsu

Kung-Hsieh Hsu

Chun-Yi Lee

A sapphire substrate with patterned structure includes a sapphire base; a plurality of the cavities formed on a surface of the sapphire base; and a template layer. The plurality of the cavities are periodically arranged at a predetermined distance from each other, and each of the plurality of the cavities has a bottom surface and a top opening. Each of the plurality of the cavities comprises at least a first and a second inclined surfaces, and the first and the second inclined surfaces are inclined by a first and a second angles respectively with respect to the bottom surface of the plurality of the cavities.

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Taoyuan, Taiwan

Cheng-Yu Chiu