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:
Mar. 11, 2008
Filed:
Jun. 30, 2004
Michael Feldbaum, San Jose, CA (US);
John I. Kim, San Jose, CA (US);
Murali Ramasubramanian, San Jose, CA (US);
Howard Gordon Zolla, San Jose, CA (US);
Michael Feldbaum, San Jose, CA (US);
John I. Kim, San Jose, CA (US);
Murali Ramasubramanian, San Jose, CA (US);
Howard Gordon Zolla, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A first magnetic shield layer of the read head sensor is deposited upon a slider substrate surface. A patterned photoresist is then photolithographically fabricated upon the first magnetic shield layer with openings that are formed alongside the location at which the read sensor will be fabricated. An ion milling step is performed to create pockets within the surface of the magnetic shield layer at the location of the openings in the photoresist layer. The photoresist layer is then removed, and a fill layer is deposited across the surface of the magnetic shield layer in a depth greater than the depth of the pocket. Thereafter, a polishing step is conducted to remove portions of the fill layer down to the surface of the magnetic shield layer. A Ginsulation layer is deposited and a magnetic head sensor element is then fabricated upon the insulation layer.