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:
Dec. 31, 2002
Filed:
Apr. 27, 2000
Inductive magnetic recording head having inclined magnetic read/write pole and method of making same
Shipley Company, L.L.C., Marlborough, MA (US);
Abstract
A thin film magnetic read/write head which has a return pole and a read/write pole adjacent to the return pole. The return pole has a vertical sidewall which has a predetermined height and is perpendicular to a substrate. An insulating layer is disposed on the sidewall between the return pole and read/write pole. The insulating layer thus defines a gap spacing between the return pole and read/write pole. The read/write pole comprises a magnetic material layer which is perpendicular to the substrate and adhered to the insulating layer. The thickness of the magnetic material layer determines the thickness of the read/write pole. The return pole and read/write pole have top surfaces which are coplanar. The plane defined by the top return pole surface is perpendicular to the magnetic material layer and parallel to the substrate. The read/write pole is magnetically coupled to a core layer which is magnetically coupled to a solenoidal winding of conductive material. The core layer is coupled to a base layer which is coupled to the return pole. The return pole and core layer are disposed on top of the base layer.