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. 20, 2005
Filed:
Jul. 29, 2003
Marie-claire Cyrille, San Jose, CA (US);
Frederick Hayes Dill, South Salem, NY (US);
Kuok San Ho, Santa Clara, CA (US);
Jui-lung LI, San Jose, CA (US);
Scott Arthur Macdonald, San Jose, CA (US);
James L. Nix, Gilroy, CA (US);
Ching Hwa Tsang, Sunnyvale, CA (US);
Marie-Claire Cyrille, San Jose, CA (US);
Frederick Hayes Dill, South Salem, NY (US);
Kuok San Ho, Santa Clara, CA (US);
Jui-Lung Li, San Jose, CA (US);
Scott Arthur MacDonald, San Jose, CA (US);
James L. Nix, Gilroy, CA (US);
Ching Hwa Tsang, Sunnyvale, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A read head has a bottom lead made of material that is relatively polish resistant and a top lead layer that polishes down more easily than the bottom layer. With this structure, when the layers are deposited and then polished down, the top layer recesses away from the sensor (and bottom lead layer) in a controlled fashion, providing an acceptable lead structure that reduces the mismatch between the read head physical read width and magnetic read width.