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:
May. 26, 1992
Filed:
Feb. 15, 1990
Applicant:
Inventor:
George J Gau, Santa Barbara, CA (US);
Assignee:
Seagate Technology, Inc., Scotts Valley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F / ; G11B / ;
U.S. Cl.
CPC ...
430313 ; 360122 ; 360123 ; 360126 ; 29603 ;
Abstract
A thin film magnetic read/write head is manufactured using an improved pole tip alignment process. The upper pole tip is formed with positively sloped profile sides for improved alignment between the profile sides of the top pole and the profile sides of the protective layer used during an ion milling alignment process.