发明申请
- 专利标题: PATTERNED MAGNETIC RECORDING DISK WITH PATTERNED SERVO SECTORS AND METHOD USING BLOCK COPOLYMERS FOR MAKING A MASTER MOLD FOR NANOIMPRINTING THE DISK
- 专利标题(中): 带有图案伺服器的图形磁记录盘和使用块状共聚物制备用于纳米片的主模的方法
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申请号: US12604333申请日: 2009-10-22
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公开(公告)号: US20110096436A1公开(公告)日: 2011-04-28
- 发明人: Thomas R. Albrecht , Jonathan Darrel Coker , Ricardo Ruiz , Bruce Alexander Wilson
- 申请人: Thomas R. Albrecht , Jonathan Darrel Coker , Ricardo Ruiz , Bruce Alexander Wilson
- 申请人地址: US CA San Jose
- 专利权人: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
- 当前专利权人: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
- 当前专利权人地址: US CA San Jose
- 主分类号: G11B5/82
- IPC分类号: G11B5/82 ; B05D7/00 ; B44C1/22
摘要:
A patterned-media perpendicular magnetic recording disk has patterned servo regions and is nanoimprinted from a master mold made using directed self-assembly of block copolymers. The disk has patterned concentric circular data tracks of discrete data islands, with the tracks having a track pitch in the radial or cross-track direction. The disk also has patterned servo sectors extending generally radially across the patterned data tracks. The servo pattern is a chevron pattern of slanted or non-radial stripes that have a stripe pitch in the cross-stripe direction substantially equal to the track pitch. As a result of the method of making the master mold, the nanoimprinted disk has a chevron servo pattern with non-radial stripes that are magnetized segments of radial lines separated by nonmagnetic spaces.