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. 19, 2004
Filed:
Oct. 23, 2002
Richard D. Hsiao, San Jose, CA (US);
Quang Le, San Jose, CA (US);
Edward Hin Pong Lee, San Jose, CA (US);
Paul Phong Nguyen, San Jose, CA (US);
Son Van Nguyen, Los Gatos, CA (US);
Denny D. Tang, Saratoga, CA (US);
Bradley Douglas Webb, San Jose, CA (US);
Patrick Rush Webb, San Jose, CA (US);
Samuel Wei-san Yuan, Saratoga, CA (US);
Hitachi Global Storage Technologies Netherlands, B.V., Amsterdam, NL;
Abstract
A method for producing a magnetic transducer with a inductive write head having a multilayer coil with a high aspect ratio and a short yoke is provided. A damascene process is used for two coil layers and a conventional process for the third coil layer. The process of the invention allows a seed layer for the coil to be deposited on the side walls of the trenches for the first and second coil layers. In one embodiment the seed layer for the coil is preceded by an adhesion layer.