Semiconductor device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11430884
APP PUB NO 20210202736A1
SERIAL NO

17005694

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A semiconductor device includes a semiconductor part; first and second electrodes respectively on back and front surfaces of the semiconductor part; third and fourth electrodes inside a trench of the semiconductor part, the fourth electrode being provided between the first electrode and the third electrode; a first insulating portion electrically insulating the third electrode from the semiconductor part; a second insulating portion electrically insulating the third electrode from the second electrode; a third insulating portion electrically insulating the fourth electrode from the semiconductor part; a fourth insulating portion electrically insulating the fourth electrode from the third electrode; and a fifth insulating portion including a first portion and a second portion, the first portion being provided inside the fourth electrode, the second portion extending outward of the fourth electrode. The second portion extends from the first portion in a first direction from the first electrode toward the second electrode.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA TOSHIBA1-1 SHIBAURA 1-CHOME MINATO-KU TOKYO 105-8001
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION1-1 SHIBAURA 1-CHOME MINATO-KU TOKYO 105-0023

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishiguchi, Toshifumi Hakusan Ishikawa, JP 26 94

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