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:
Mar. 14, 2006
Filed:
Apr. 24, 2002
Kochan Ju, Fremont, CA (US);
Cherng-chyi Han, San Jose, CA (US);
Po-kang Wang, San Jose, CA (US);
Mao-min Chen, San Jose, CA (US);
Chun Liu, Fremont, CA (US);
Jei Wei Chang, Cupertino, CA (US);
Kochan Ju, Fremont, CA (US);
Cherng-Chyi Han, San Jose, CA (US);
Po-Kang Wang, San Jose, CA (US);
Mao-Min Chen, San Jose, CA (US);
Chun Liu, Fremont, CA (US);
Jei Wei Chang, Cupertino, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
A merged read/write magnetic recording head comprises a low magnetic moment first magnetic shield layer over a substrate. A read gap layer with a magnetoresistive head is formed over the first shield layer. A shared pole comprises a low magnetic moment second magnetic shield layer plated on a sputtered seed PLM layer over the read gap layer, a non-magnetic layer plated over the PLM layer and a HMM lower pole layer plated over the second magnetic shield layer. A write gap layer is formed over the first high magnetic moment pole layer of the shared pole. An upper pole comprises a high magnetic moment pole layer over the write gap layer.