Invention Grant
- Patent Title: Method and manufacture process for exchange decoupled first magnetic layer
- Patent Title (中): 交换去耦第一磁性层的方法和制造工艺
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Application No.: US12180093Application Date: 2008-07-25
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Publication No.: US08697260B2Publication Date: 2014-04-15
- Inventor: Zhong Stella Wu , Samuel Dacke Harkness, IV , Mariana R. Munteanu , Qixu Chen , Connie Chunling Liu
- Applicant: Zhong Stella Wu , Samuel Dacke Harkness, IV , Mariana R. Munteanu , Qixu Chen , Connie Chunling Liu
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Hollingsworth Davis, LLC
- Main IPC: G11B5/66
- IPC: G11B5/66
Abstract:
A perpendicular magnetic recording medium having a dual-layer magnetic film is disclosed. The bottom layer is completely exchange decoupled, and the top layer contains a certain amount of exchange coupling optimized for recording performance. Preferably, the bottom magnetic layer contains stable oxide material (for example, TiO2) and other non-magnetic elements (for example, Cr). A method of manufacturing the media is also disclosed.
Public/Granted literature
- US20100020441A1 METHOD AND MANUFACTURE PROCESS FOR EXCHANGE DECOUPLED FIRST MAGNETIC LAYER Public/Granted day:2010-01-28
Information query
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