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:
Oct. 26, 1993
Filed:
Sep. 17, 1991
Applicant:
Inventors:
Wei C Hsie, Eden Prairie, MN (US);
Michael M Collver, Afton, MN (US);
Assignee:
Seagate Technology, Inc., Scotts Valley, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44C / ; C23F / ;
U.S. Cl.
CPC ...
156656 ; 29603 ; 1566591 ; 1566611 ; 156667 ;
Abstract
A magnetoresistive sensor includes a track width oxide layer which overlies a magnetoresistive element. Etch stop layers lie on opposite sides of the magnetoresistive element adjacent a magnetoresistive element. Contact/boundary control layers overlie the etch stop layer and lie adjacent the track width oxide layer. A separate loft oxide layer overlies the contact/boundary control layers and the track width oxide layer. The magnetoresistive sensor is formed by depositing a track width oxide to a thickness of the contact/boundary control layers.