Invention Grant
US08130468B2 System and apparatus for patterned media with reduced magnetic trench material
有权
具有减小的磁沟槽材料的图案化介质的系统和设备
- Patent Title: System and apparatus for patterned media with reduced magnetic trench material
- Patent Title (中): 具有减小的磁沟槽材料的图案化介质的系统和设备
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Application No.: US11957981Application Date: 2007-12-17
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Publication No.: US08130468B2Publication Date: 2012-03-06
- Inventor: Thomas Robert Albrecht , Olav Hellwig
- Applicant: Thomas Robert Albrecht , Olav Hellwig
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technolgies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technolgies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Main IPC: G11B5/82
- IPC: G11B5/82

Abstract:
A bit patterned magnetic media design for reducing the amount of magnetic material located in the trenches between topographic features is disclosed. An intermediate non-magnetic layer is deposited on the topography prior to depositing the functional magnetic layer on the topographic substrate features. The non-magnetic layer increases the width of the land regions that will ultimately support the functional magnetic layer. The non-magnetic layer also reduces the amount of trench deposition that can occur in the subsequent deposition of the magnetic recording layer. By eliminating most of the magnetic trench material, the amount of magnetic flux and readback interference produced by the trench material is reduced to an acceptable level.
Public/Granted literature
- US20090154017A1 SYSTEM, METHOD AND APPARATUS FOR PATTERNED MEDIA WITH REDUCED MAGNETIC TRENCH MATERIAL Public/Granted day:2009-06-18
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