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:
Nov. 06, 2007
Filed:
Jul. 30, 2004
Andrew Chiu, San Jose, CA (US);
Edward Hin Pong Lee, San Jose, CA (US);
John Jaekoyun Yang, Newark, CA (US);
Michael Ming Hsiang Yang, San Jose, CA (US);
Sue Siyang Zhang, Saratoga, CA (US);
Andrew Chiu, San Jose, CA (US);
Edward Hin Pong Lee, San Jose, CA (US);
John Jaekoyun Yang, Newark, CA (US);
Michael Ming Hsiang Yang, San Jose, CA (US);
Sue Siyang Zhang, Saratoga, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A magnetic write head for use in a data recording system having first and second magnetic pole, the first pole having a P1 pedestal. An electrically conductive coil passes through a space between the first and second poles for inducing a magnetic flux through the yoke formed by the first and second poles. A bi-layer insulation layer disposed between the poles includes a layer of photoresist for preventing voids and a layer of alumina formed thereover to provide a structural brace to prevent recession of the P1 pedestal during manufacturing operations such as soda blast.