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:
Jun. 08, 1993
Filed:
Sep. 10, 1991
Jeon-hyoung Lee, Seoul, KR;
Boo-yung Huh, Suwon, KR;
Samsung Electronics Co., Ltd., Kyunggi, KR;
Abstract
A semiconductor memory device comprises a plurality of normal memory cell arrays having a first and a second data state, a plurality of redundant memory cell arrays having a first and a second data state for substituting for the normal memory cell arrays, a plurality of input/output lines, a plurality of complementary input/output lines, a plurality of first control signals for substituting a redundant memory cell array having the first data state for a defective normal memory cell array having the first data state, and a plurality of second control signals for substituting a redundant memory cell array having the second data state for a defective normal memory cell array having the second data state. In the device, a control circuit for transmitting the complementary input/output data to the plurality of input/output lines, and the input/output data to the plurality of complementary input/output data lines according to the circumstances is provided. Accordingly, the yield of semiconductor memory devices can be improved by increasing the potential number of redundant memory cells which can be substituted for defective normal memory cells.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile