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:
Oct. 02, 2012
Filed:
Jul. 30, 2004
Terence Tin-lok Lam, Cupertino, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Changqing Shi, San Jose, CA (US);
Samuel Yuan, Saratoga, CA (US);
Terence Tin-Lok Lam, Cupertino, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Changqing Shi, San Jose, CA (US);
Samuel Yuan, Saratoga, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A method and apparatus for providing a write head having well-defined, precise write head pole tips. A coplanar write head pole tip processing method provides a thin-film magnetic write head pole tip layer and defines first and second pole tips from the pole tip layer. When the pole tips are provided on a write head, a write gap can be defined using ion milling, E-beam lithography, FAB or can be deposited. The write head pole tips can be used in conjunction with read heads by merging a read head with a write head or a read head can be bonded to a write head in a piggybacked fashion.