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:
Feb. 28, 1995
Filed:
Jan. 28, 1993
Applicant:
Inventor:
Akihiko Kagami, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365200 ; 365201 ; 36523003 ; 36523006 ;
Abstract
In a semiconductor memory device which can perform a parallel test upon a predetermined number of memory cells by using a degenerate address of a plurality of first addresses each corresponding to one memory cell, when a defective memory cell is found by a parallel test using the degenerate address, an address whose space includes the space of the degenerate address is written into only one location of its corresponding redundancy decoder to replace the defective memory cell with its corresponding redundancy memory cell.
Kagami, Akihiko. (1995). Semiconductor memory device incorporating redundancy memory cells having (U.S. Patent No. 5394369). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5394369
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile