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:
Dec. 12, 1995
Filed:
May. 06, 1994
Peter K George, Bloomington, MN (US);
Seagate Technology, Inc., Scotts Valley, CA (US);
Abstract
A magnetoresistive transducer design for cross-talk supression and increased Neel temperature is disclosed. The transducer is formed by fabricating on a suitable substrate an antiferromagnetic material layer above and below the permalloy layer. The additional antiferromagnetic layer between the substrate and the permalloy increases the exchange coupling biasing of the magnetoresistive transducer thereby providing increased cross-talk supression and greater longitudinal bias. The location of the additional antiferromagnetic layer beneath the permalloy also increases the Neel temperature of the transducer. A permanent magnetic material can also be substituted for the antiferromagnetic material with the result that the longitudinal bias is increased by coupling to the upper and lower surfaces of the permalloy layer thereby doubling the effect.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile