Invention Grant
- Patent Title: Perpendicular magnetic recording layer with regions having different magnetic anisotropy constants
- Patent Title (中): 具有不同磁各向异性常数区域的垂直磁记录层
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Application No.: US12018270Application Date: 2008-01-23
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Publication No.: US08361641B2Publication Date: 2013-01-29
- Inventor: Seong-yong Yoon , Chee-kheng Lim , Hoo-san Lee , Hoon-sang Oh , Sok-hyun Kong
- Applicant: Seong-yong Yoon , Chee-kheng Lim , Hoo-san Lee , Hoon-sang Oh , Sok-hyun Kong
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Hall Estill Attorneys at Law
- Priority: KR10-2007-0052915 20070530
- Main IPC: G11B5/66
- IPC: G11B5/66
Abstract:
A perpendicular magnetic recording medium and a method of manufacturing the same are provided. The perpendicular magnetic recording medium comprises a recording layer including a plurality of regions formed in the depth direction of the recording layer and a magnetic anisotropy constant of a region relatively deeper than another region, among the plurality of regions, is greater than that of the another region. The method of manufacturing a perpendicular magnetic recording medium includes: forming a recording layer having perpendicular magnetic anisotropy; and irradiating the recording layer with ions.
Public/Granted literature
- US20080299416A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2008-12-04
Information query
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