Semiconductor device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11676995
APP PUB NO 20200286989A1
SERIAL NO

16448166

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Abstract

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A semiconductor device includes a semiconductor body, an electrode provided on a surface of the semiconductor body. The semiconductor body includes a first semiconductor layer and a second semiconductor layer provided between the first semiconductor layer and the second electrode. The second semiconductor layer includes first and second regions arranged along the surface of the semiconductor body. The first region has a surface contacting the electrode, and the second region includes second conductivity type impurities with a concentration lower than a concentration of the second conductivity type impurities at the surface of the first region. The second semiconductor layer has a first concentration of second conductivity type impurities at a first position in the second region, and a second concentration of second conductivity type impurities at a second position between the first position and the electrode, the second concentration being lower than the first concentration.

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Patent Owner(s)

  • KABUSHIKI KAISHA TOSHIBA; TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Izumi, Masato Nonoichi Ishikawa, JP 33 143
Nakamura, Kazutoshi Nonoichi Ishikawa, JP 108 1069

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