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, 1988
Filed:
Dec. 22, 1986
Applicant:
Inventors:
Nancy J Jubb, Tucson, AZ (US);
Timothy M Reith, Tucson, AZ (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ; C23C / ; G11B / ;
U.S. Cl.
CPC ...
148310 ; 148312 ; 420 94 ; 420459 ; 2041922 ;
Abstract
An improved thin magnetic layer which is suitable for use in magnetic head pole piece applications and a method of manufacture therefor are disclosed. The magnetic layer is a single phase composition of NiFe and Al.sub.2 O.sub.3. The magnetic layer is manufactured by cosputtering from a single, two phase sputtering target, or from separate NiFe and Al.sub.2 O.sub.3 sputtering targets. The single phase composition results in increased abrasion resistance without degradation of the magnetic properties of the layer.