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:
Jun. 21, 2005
Filed:
Mar. 21, 2003
Applicant:
Wayne Theel, Plymouth, MN (US);
Inventor:
Wayne Theel, Plymouth, MN (US);
Assignee:
Union Semiconductor Technology Corporation, Plymouth, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C011/00 ;
U.S. Cl.
CPC ...
Abstract
MRAM sensing operations use a word line () and a sense current to detect the state of a bit (). The bit () has a high resistance or a low resistance state. Using multiple sub bits () in each bit () increases the difference between the high resistance and low resistance state in proportion to the number of sub bits () in each bit (). Multiple sub bits () also provide redundancy in the event of failure of a sub bit (). The MRAM can be designed to function with one or more sub bits () being defective.