Nitride semiconductor device and manufacturing method thereof

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United States of America Patent

PATENT NO 9871130
SERIAL NO

15273336

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Abstract

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A nitride semiconductor device includes: a first nitride semiconductor layer serving as an electron transit layer; a second nitride semiconductor layer formed on the first nitride semiconductor layer, the second nitride semiconductor layer having a band gap greater than that of the first nitride semiconductor layer and serving as an electron supply layer; a third nitride semiconductor layer formed on the second nitride semiconductor layer, the third nitride semiconductor layer having a band gap greater than that of the first nitride semiconductor layer and smaller than that of the second nitride semiconductor layer; and a gate part formed on the third nitride semiconductor layer, wherein the gate part has a fourth nitride semiconductor layer formed on the third nitride semiconductor layer and includes an acceptor type impurity, and a gate electrode formed on the fourth nitride semiconductor layer.

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Patent Owner(s)

Patent OwnerAddress
ROHM CO LTDJAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tanaka, Taketoshi Kyoto, JP 41 527

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