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:
Mar. 16, 2004
Filed:
May. 12, 1997
Applicant:
Inventor:
Charles H. Tolman, Bloomington, MN (US);
Assignee:
Seagate Technology LLC, Scotts Valley, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 1/434 ;
U.S. Cl.
CPC ...
C23C 1/434 ;
Abstract
A method of making a magnetoresistance sensor which detects stored information from a medium and which provides an output voltage to a auxiliary circuitry is disclosed. The method comprises sputtering a bias layer in a sputtering gas mixture of nitrogen and argon. A spacer layer is also formed in a sputtering gas mixture of nitrogen and argon. Finally, an MR magnetic layer is formed. The spacer layer is positioned between the bias layer and the magnetic layer. The output voltage is provided to auxiliary circuitry when a current flows through the MR magnetic layer.