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:
Jan. 06, 2009
Filed:
Sep. 19, 2007
Richard D. Bunch, San Jose, CA (US);
Jeffrey S. Lille, Sunnyvale, CA (US);
Huey-ming Tzeng, San Jose, CA (US);
Richard D. Bunch, San Jose, CA (US);
Jeffrey S. Lille, Sunnyvale, CA (US);
Huey-Ming Tzeng, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A disk drive including a slider with one or more sacrificial structures (extensions) that facilitate lapping to create the air-bearing surface (ABS) is described. The slider includes a magnetic transducer and has a remaining portion of a sacrificial extension protruding on an air-bearing surface, the remaining portion of the sacrificial extension is narrower than the air-bearing surface and aligned with the magnetic transducer. The sacrificial extension makes the surface of the slider which will be lapped non-planar. The sacrificial extension extends below the predetermined ABS plane. When the sliders are individually separated by DRIE, the shape of a mask including the sacrificial extension is projected down into and along the slider body. The mask and resulting slider includes a channel in the slider body that is aligned with the sacrificial extension and disposed on a surface of slider body that is parallel to and opposite from the air-bearing surface.