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. 25, 2000
Filed:
Aug. 09, 1996
Richard Albert Strom, Eagan, MN (US);
Seagate Technology, Inc., Scotts Valley, CA (US);
Abstract
A lapping apparatus for controlling curvature of a hydrodynamic bearing slider includes a bar of slider substrate material and a lapping carrier. The bar of slider substrate material includes at least one slider body having a bearing surface, and a back surface, with the back surface having a periphery and a center. The lapping carrier has a support surface which supports the slider back surface at the periphery and has a recess in the support surface adjacent the slider center such that the back surface is unsupported at the slider center. During the lapping process, the center of the slider deflects into the recess in the lapping carrier such that less material is lapped from the bearing surface at the center than at the periphery, which results in a positive curvature change in the bearing surface.