Semiconductor device

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United States of America Patent

PATENT NO 9818838
SERIAL NO

15180851

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Abstract

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A method for fabricating a semiconductor device includes: forming a silicon nitride film having a refractive index equal to or larger than 2.2 on a nitride semiconductor layer; and introducing at least one of elements that are oxygen, nitrogen, fluorine, phosphorus, sulfur and selenium into the silicon nitride film, the silicon nitride film including the at least one of elements remaining on the nitride semiconductor layer. The at least one of elements is introduced by a process of exposing the silicon nitride film to plasma including the at least one of elements, a process of ion-implanting the at least one of elements into the silicon nitride film, or a process of thermally diffusing the at least one of elements into the silicon nitride film. The silicon nitride film is formed in contact with a surface of the nitride semiconductor layer.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO ELECTRIC DEVICE INNOVATIONS INC1 KANAI-CHO SAKAE-KU YOKOHAMA-SHI KANAGAWA 244-0845

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Komatani, Tsutomu Yokohama, JP 23 206

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