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:
May. 09, 2000
Filed:
Jul. 14, 1998
Applicant:
Inventor:
Hua Zheng, Fremont, CA (US);
Assignee:
Winbond Electronics Corporation America, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36523006 ; 365200 ; 3652257 ;
Abstract
A memory circuit column decoder is provided with an array of fuses that can be selectively blown to indicate a fuse address of a defective column of a memory array to be substituted by a redundant column. The memory circuit column decoder also includes a decoder that receives a mask that selectively masks out certain columns of a group of columns from being written during a block write operation, and the fuse address from the array of fuses. The decoder generates a signal for disabling the redundant column during a block write operation when the mask masks out the defective column.