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. 15, 2005
Filed:
Nov. 20, 2002
Applicants:
Hiroaki Tanizaki, Hyogo, JP;
Takaharu Tsuji, Hyogo, JP;
Tsukasa Ooishi, Hyogo, JP;
Inventors:
Assignees:
Renesas Technology Corp., Tokyo, JP;
Mitsubishi Electric Engineering Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C011/00 ; G11C011/14 ; G11C011/15 ;
U.S. Cl.
CPC ...
Abstract
A dummy cell has a plurality of dummy magneto-resistance elements which have the same characteristic as a magneto-resistance element, which characteristic changes corresponding to a voltage applied to the opposite ends. In addition, a voltage applied to opposite ends of each dummy magneto-resistance element is made smaller than a voltage applied to opposite ends of a magneto-resistance element of a memory cell. With this, the dummy cell is designed so as to have an intermediate electric resistance between first and second electric resistances.