发明申请
- 专利标题: SLANTED BUMP DESIGN FOR MAGNETIC SHIELDS IN PERPENDICULAR WRITE HEADS AND METHOD OF MAKING SAME
- 专利标题(中): 普通书写磁头中的磁片的凸起设计及其制作方法
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申请号: US12569957申请日: 2009-09-30
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公开(公告)号: US20110075295A1公开(公告)日: 2011-03-31
- 发明人: Sue S. Zhang , Yi Zheng
- 申请人: Sue S. Zhang , Yi Zheng
- 主分类号: G11B5/115
- IPC分类号: G11B5/115 ; G11B5/10
摘要:
Embodiments provide a slanted bump magnetic shield in a perpendicular write head and a method of making the shield. The slanted bump magnetic shield provides a small throat height to maximize magnetic flux for writing to a magnetic media such as a magnetic storage disk in a hard disk drive, while avoiding saturation. An etch process is used to form a taper in non-magnetic gap material. The magnetic shield is then deposited on the taper, forming the slanted bump of the shield. The etch process may be a multiple etch process to provide better edge and thickness control when forming the taper.
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