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:
Jul. 17, 2012
Filed:
Dec. 19, 2006
James M. Freitag, Sunnyvale, CA (US);
Howard G. Zolla, San Jose, CA (US);
James M. Freitag, Sunnyvale, CA (US);
Howard G. Zolla, San Jose, CA (US);
HGST Netherlands, B.V., Amsterdam, NL;
Abstract
Magnetic recording heads and associated fabrication methods are disclosed. A heat spreader structure in a magnetic recording head includes a seed layer with a heat spreader layer formed on the seed layer. When the heat spreader layer (e.g., Aluminum Nitride) is grown on the seed layer (e.g., NiTa or Alumina), the heat spreader layer forms a well-oriented crystalline structure that allows for a desired thermal conductivity, such as a thermal conductivity greater than about 55 W/m−K. As a result of using the seed layer, a material such as Aluminum Nitride can be used for a heat spreader layer to effectively dissipate heat in a magnetic recording head.