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:
Sep. 09, 2025
Filed:
May. 15, 2023
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventors:
Assignee:
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/16 (2006.01); G11C 7/08 (2006.01);
U.S. Cl.
CPC ...
G11C 11/1673 (2013.01); G11C 7/08 (2013.01); G11C 11/1675 (2013.01);
Abstract
A clamp elementapplies a fixed potential to a bit line BL at a time of a readout operation. A reference current source RCS generates a reference current Iref. An offset current source OCSis activated at a time of a readout operation for an OTP cell OTPC, and at a time of being activated, generates an offset current Iofto be subtracted from a cell current Icel. At the time of the readout operation for the OTP cell OTPC, the sense amplifier SA detects a magnitude relationship between the reference current Iref and a readout current Ird obtained by subtracting the offset current Ioffrom the cell current Icel.