Schottky device and method of manufacturing the same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11217707
APP PUB NO 20200152806A1
SERIAL NO

16740224

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Abstract

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A Schottky device includes a silicon carbide (SiC) substrate of a first conductivity type, a drift layer of the first conductivity type, a trench, a barrier layer of a second conductivity type, an electrically conductive material that at least partially fills the trench and contacts the barrier layer, a first electrode, and a second electrode. The drift layer is formed of SiC and is situated onto the SiC substrate. The trench extends from the top surface of the drift layer towards the SiC substrate. The barrier layer contacts the drifting layer and covers a sidewall and a bottom wall of the trench. The first electrode forms a Schottky junction with the drift layer and forms a low resistivity contact with the barrier layer and the electrically conductive material. The second electrode forms an ohmic contact with the SiC substrate.

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Patent Owner(s)

  • ALPHA POWER SOLUTIONS LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chan, Wai Tien Hong Kong, CN 65 2592
Chau, Wing Chong Tony Hong Kong, CN 7 2
Cheung, Wing Kit Hong Kong, CN 7 3

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