The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 04, 2022

Filed:

Mar. 04, 2021
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventors:

Shotaro Baba, Kanazawa Ishikawa, JP;

Yusuke Kobayashi, Nagareyama Chiba, JP;

Hiroaki Katou, Nonoichi Ishikawa, JP;

Toshifumi Nishiguchi, Hakusan Ishikawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/78 (2006.01); H01L 29/417 (2006.01); H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7802 (2013.01); H01L 29/66712 (2013.01);
Abstract

According to one embodiment, a semiconductor device includes first, second, and third conductive members, a semiconductor member, and a first insulating member. The semiconductor member includes a first semiconductor region provided on the first conductive member, a second semiconductor region provided on a portion of the first semiconductor region, and a third semiconductor region provided on the second semiconductor region. An impurity concentration in the third semiconductor region is greater than in the first semiconductor region. The second conductive member includes a first conductive portion electrically connected to the second and third semiconductor regions. The third conductive member is provided on an other portion of the first semiconductor region. At least a portion of the first insulating member is between the semiconductor member and the third conductive member. The at least a portion of the first insulating member electrically insulates between the semiconductor member and the third conductive member.


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