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:
Apr. 05, 2005
Filed:
Sep. 11, 2002
Declan Macken, Prior Lake, MN (US);
Christopher John Cote, Eden Prairie, MN (US);
Ladislav Rudolf Pust, Savage, MN (US);
Vee Sochivy Kong, Richfield, MN (US);
Declan Macken, Prior Lake, MN (US);
Christopher John Cote, Eden Prairie, MN (US);
Ladislav Rudolf Pust, Savage, MN (US);
Vee Sochivy Kong, Richfield, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A transducing head formed upon a slider has an air bearing surface, a top magnetic pole, a shared magnetic pole, a write via, and a shared pole extension. The write via is positioned opposite the air bearing surface and extends between the top magnetic pole and the shared magnetic pole. The shared pole extension is positioned adjacent the air bearing surface and extends from the shared magnetic pole toward the top magnetic pole. The shared pole extension is separated from the top magnetic pole by a write gap. The shared pole extension is formed of a multilayer having a layer of a first material having a high magnetic moment and a layer a second material having a coefficient of thermal expansion substantially similar to a coefficient of thermal expansion of the slider material.