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. 24, 2002
Filed:
Dec. 18, 2000
Phil-Jung Kim, Ichon-shi, KR;
Jae-Kyung Wee, Ichon-shi, KR;
Chang-Hyuk Lee, Ichon-shi, KR;
Young-Ho Seol, Ichon-shi, KR;
Jin-Keun Oh, Ichon-shi, KR;
Ho-Youb Cho, Ichon-shi, KR;
Hyundai Electronics Industries Co., LTD., Ichon-shi, KR;
Abstract
A repair circuit substitutes a defective cell with a redundancy cell. For the purpose, the repair circuit includes an antifuse programmed by a voltage difference of both ends thereof, a programming circuit for programming the antifuse, a detection circuit for detecting whether the antifuse is programmed or unprogrammed by using a first and a second power stabilization signal of a power up reset circuit, wherein the detection is performed during a power stabilization period or after the power stabilization period, a latch circuit for latching the result of the detection to thereby generate an output signal, and a redundancy circuit having a redundancy cell for repairing the defective cell in response to the output signal of the latch circuit.