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. 01, 2013
Filed:
Feb. 23, 2011
Applicants:
Yong-jun Lee, Hwaseong-si, KR;
Kwang Jin Lee, Hwaseong-si, KR;
Joon Min Park, Seoul, KR;
Huik Won Seo, Hwaseong-si, KR;
Inventors:
Yong-Jun Lee, Hwaseong-si, KR;
Kwang Jin Lee, Hwaseong-si, KR;
Joon Min Park, Seoul, KR;
Huik Won Seo, Hwaseong-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A nonvolatile memory device comprises a one-time-programmable (OTP) lock bit register. The nonvolatile memory device comprises a variable-resistance memory cell array comprising an OTP block that store data and a register that stores OTP lock state information indicating whether the data is changeable. The register comprises a variable memory cell. An initial value of the OTP lock state information is set to a program protection state.