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:
Feb. 18, 1997
Filed:
Dec. 16, 1994
Robert G Biskeborn, Hollister, CA (US);
Carol Y Inouye, San Jose, CA (US);
David J Seagle, Morgan Hill, CA (US);
Albert J Wallash, Morgan Hill, CA (US);
Robert O Barr, San Jose, CA (US);
Glen A Garfunkel, Palo Alto, CA (US);
Sanford J Lewis, Palo Alto, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of lapping the air bearing surface of a magnetoresistive head which minimizes the likelihood of interelement shorts at the air bearing surface is described. In a final, linear lapping phase, the air bearing surface is lapped back and forth parallel to the longitudinal axis of the head elements in an oscillatory path across a stationary lapping surface. Any scratches or smears of the elements will be along the length of the elements rather than transverse to the elements. Any transverse scratches or smears occurring in earlier lapping phases will be removed during the linear lapping phase.