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.:
Date of Patent:
Aug. 26, 2025
Filed:
Sep. 09, 2021
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Seiji Takenaka, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01); G11C 11/4074 (2006.01); G11C 11/4093 (2006.01); G11C 11/4096 (2006.01);
U.S. Cl.
CPC ...
G11C 11/4096 (2013.01); G11C 11/4074 (2013.01); G11C 11/4093 (2013.01);
Abstract
There are disposed second and third transistors whose gates are connected to each other, and first and fourth transistors whose gates are connected to each other. Sources of the first to fourth transistors are connected to each other. A read operation is performed in a state where drain current is supplied to the fourth transistor, and drain current larger than that of the fourth transistor is supplied to the third transistor. In the read operation, a signal associated with a first or second value is output based on drain currents of the first and second transistors.