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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.:

US 4641286 B1

PDFFull Text
Date of Patent:
Feb. 03, 1987

Filed:

Feb. 16, 1984

Auxiliary decoder for semiconductor memory device

Applicant:
Inventors:

Kazuhiro Shimotori, Hyogo, JP;

Kazuyasu Fujishima, Hyogo, JP;

Hideyuki Ozaki, Hyogo, JP;

Hideshi Miyatake, Hyogo, JP;

Assignee:

Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;

Attorney:

Sughrue, Mion, Zinn, Macpeak & Seas

Primary Examiner:

James W Moffitt

Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365230 ; 365200 ; 307463 ;
Abstract

A semiconductor memory device in which at least a line decoder or a column decoder in multiplex form is provided to select one line selection signal or column selection signal. When the line decoder or column decoder is defective, or when the word line or bit line associated with the line decoder or column decoder involves a defective bit, the defective line decoder, column decoder, word line or bit line is inactivated. The inactivated line decoder or column decoder is replaced with an auxiliary line decoder or column decoder.

Find Patent Forward Citations

Shimotori, Kazuhiro. (1987). Auxiliary decoder for semiconductor memory device (U.S. Patent No. 4641286). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4641286

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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