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. 31, 1996
Filed:
Nov. 14, 1994
Mohamad T Krounbi, San Jose, CA (US);
Hin P Lee, San Jose, CA (US);
David J Seagle, Morgan Hill, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of lapping magnetoresistive (MR) heads individually which provides an MR element having a desired height with minimized skew is described. During fabrication of the MR head, one or more shunt resistors are formed between the edge of the MR element and the head air bearing surface. The shunt resistors are electrically connected at each end to extensions of the MR electrical leads and connected to the MR element and to each other at points between the ends forming a resistor network. During lapping of the MR head, the resistance of the resistor network is measured by an Ohmmeter connected between the MR element leads. As portions of the shunt resistors are ground away, the changes in the measured resistance of the resistor network are used to monitor and control any skew in the lapping process.