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:
Sep. 28, 2021

Filed:

Feb. 25, 2020
Applicant:

Fuji Electric Co., Ltd., Kawasaki, JP;

Inventor:

Hideaki Katakura, Matsumoto, JP;

Assignee:

FUJI ELECTRIC CO., LTD., Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/04 (2006.01); H01L 21/8238 (2006.01); H01L 21/265 (2006.01); H01L 21/28 (2006.01); H01L 29/78 (2006.01); H01L 29/861 (2006.01); H01L 27/04 (2006.01);
U.S. Cl.
CPC ...
H01L 21/823857 (2013.01); H01L 21/265 (2013.01); H01L 21/28176 (2013.01); H01L 27/04 (2013.01); H01L 29/04 (2013.01); H01L 29/7804 (2013.01); H01L 29/7808 (2013.01); H01L 29/861 (2013.01);
Abstract

A semiconductor integrated circuit includes: a semiconductor monocrystalline region; an insulating film provided on a main surface of the semiconductor monocrystalline region; a conductive layer having a rectangular shape provided on the insulating film and including at least a polycrystalline layer of p-type; electric-field relaxing layers having a lower specific resistivity than the conductive layer and each including a polycrystalline layer of n-type so as to be arranged on both sides of the conductive layer in a direction perpendicular to a current-flowing direction; a high-potential-side electrode in ohmic contact with the conductive layer at one end of the conductive layer in the current-flowing direction; and a low-potential-side electrode in ohmic contact with the conductive layer and the respective electric-field relaxing layers at another end of the conductive layer opposed to the one end in the current-flowing direction, and having a lower potential than the high-potential-side electrode.


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