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:
Oct. 28, 2025
Filed:
Oct. 31, 2022
Applicant:
SK Keyfoundry Inc., Cheongju-si, KR;
Inventors:
Assignee:
SK keyfoundry Inc., Cheongju-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 17/18 (2006.01); G11C 7/10 (2006.01); G11C 7/22 (2006.01);
U.S. Cl.
CPC ...
G11C 17/18 (2013.01); G11C 7/1045 (2013.01); G11C 7/222 (2013.01);
Abstract
An eFuse one-time programmable (OTP) memory includes an eFuse intellectual property (IP) configured to perform one-time writing and multiple readings for a plurality of memory cells, and a serial interface (SI) logic configured to receive a clock signal and a trim signal from a master device, and perform data writing to, or reading from, the eFuse IP based on the clock signal and the trim signal. The trim signal includes a start signal, a mode signal configured for a write mode or a read mode, and control signals configured to read or write for each of a plurality of addresses corresponding to the plurality of memory cells.