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:
Feb. 06, 2001
Filed:
Jun. 19, 1997
Eeltje A. Draaisma, Eindhoven, NL;
Franciscus A. Pronk, Eindhoven, NL;
Onstream, Inc., Loveland, CO (US);
Abstract
Method of manufacturing a thin-film magnetic head comprising an inductive transducing system. A non-magnetic, insulating material for forming a first insulation layer (,), on which an inductive transducing element (,) is formed, is deposited on a plane basic surface (,). Subsequently, a non-magnetic, insulating material for forming a second insulation layer (,) is deposited on the first insulation layer and the inductive transducing element formed thereon. Subsequently, material is removed in an area proximate to a head face (,) to be formed for forming an aperture extending through the first and the second insulation layer and reaching as far as the basic surface, whereafter a non-magnetic, insulating material for forming a gap layer (,) is deposited in the aperture. Subsequently, a soft-magnetic material for forming a first soft-magnetic layer is deposited on the gap layer, whereafter the soft-magnetic layer (,), as well as adjoining, uncovered layer parts of deposited non-magnetic, insulating material are planarized to form a plane surface. Subsequently, a soft-magnetic material is deposited on this surface for forming a second soft-magnetic layer (,) which, jointly with the first soft-magnetic layer, constitutes a magnetic flux guide (,).