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. 25, 1996
Filed:
Oct. 19, 1995
Applicant:
Inventors:
Assignee:
Read-Rite Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427547 ; 2041922 ; 427130 ; 427131 ; 427132 ; 4273831 ; 427404 ; 4274192 ; 427598 ;
Abstract
Exchange coupled magnetic thin films are produced by depositing an antiferromagnetic layer, followed by deposition of a layer of ferromagnetic material on the antiferromagnetic layer. The composite antiferromagnetic/ferromagnetic structure is then annealed at an elevated temperature for a predetermined length of time. This process results in considerably higher exchange coupling fields than obtainable before. Alternatively, the antiferromagnetic layer may be annealed prior to deposition of the ferromagnetic layer.