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.

Patent No.:

US 12033941 B1

Date of Patent:

Jul. 09, 2024

Filed:

Apr. 21, 2021

Trimming circuit and trimming method

Applicant:

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

Inventor:

Morio Iwamizu, Matsumoto, JP;

Assignee:

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

Attorney:

Primary Examiner:

Patrick O Neill

Int. Cl.

CPC ...

H01L 23/525 (2006.01); H01L 21/768 (2006.01); H01L 27/02 (2006.01); H01L 27/06 (2006.01); H01L 27/088 (2006.01); H01L 29/868 (2006.01);

U.S. Cl.

CPC ...

H01L 23/5256 (2013.01); H01L 21/76886 (2013.01); H01L 27/0255 (2013.01); H01L 27/0629 (2013.01); H01L 27/088 (2013.01); H01L 29/868 (2013.01);

Abstract

A trimming circuit configured to output a voltage according to the presence or absence of disconnection of a fuse resistor is provided, including a fuse resistor formed by a polysilicon layer arranged on a semiconductor substrate via an insulating film, a pad for trimming connected to one end of the fuse resistor, an output terminal electrically connected to a connection point between the fuse resistor and the pad, and configured to output a voltage according to the presence or absence of disconnection of the fuse resistor, and a diode formed on the semiconductor substrate, having one end connected to the other end of the fuse resistor.

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