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. 09, 2019
Filed:
Jun. 02, 2015
Hgst Netherlands B.v., Amsterdam, NL;
Hitesh Arora, Fremont, CA (US);
Bruce Gurney, San Jose, CA (US);
Olav Hellwig, San Jose, CA (US);
Jodi Mari Iwata, Santa Clara, CA (US);
Tiffany Suzanne Santos, Palo Alto, CA (US);
Dieter K. Weller, San Jose, CA (US);
Frank Zhu, San Jose, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
Methods are disclosed for increasing areal density in Heat Assisted Magnetic Recording (HAMR) data storage systems by controlling the media layer grain size, grain size distribution, and pitch via templating techniques that are compatible with the high temperature HAMR media deposition. Embodiments include using current HAMR media seed layers as well as additionally introduced interlayers for the templating process. Topographic as well as chemical templating methods are disclosed that may employ nanoimprint technology or nanoparticle self-assembly among other patterning techniques.