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:
Nov. 23, 1999
Filed:
Dec. 02, 1997
Applicant:
Inventor:
Katsuya Nakashima, Nagasaki, JP;
Assignee:
Sony Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
3652257 ; 365205 ; 365201 ;
Abstract
A sense amplifier is provided with a trimming capability to provide a semiconductor memory device capable of a reading operation at higher speeds than related-art technology. A trimming means (8) is provided for controlling a trimming block (7) in a sense amplifier (5) to perform a trimming operation. A fuse is used for the trimming means (8). The fuse is cut at a necessary position at any given time after fabrication, thereby allowing initialization for reducing the input offset of the sense amplifier (5).