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:
Jul. 26, 1988
Filed:
Feb. 05, 1987
Applicant:
Inventor:
Keishi Nakashima, Nagaoka, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
29603 ; 360122 ; 360123 ;
Abstract
A method of manufacturing a thin film magnetic head is disclosed. This method is characterized such that a protection film is formed on a substrate; only corresponding portions of the protection film to bonding pads are ground in a groove-like configuration before cutting out the thin film magnetic heads therefrom so that the bonding pads are exposed; and the substrate is cut to a predetermined size per thin film magnetic head. With this arrangement, it is feasible to prevent an upper magnetic layer from being damaged during the grinding operation.