发明申请
- 专利标题: METHOD OF MANUFACTURING A PERPENDICULAR MAGNETIC WRITE HEAD WITH STEPPED TRAILING MAGNETIC SHIELD WITH ELECTRICAL LAPPING GUIDE CONTROL
- 专利标题(中): 使用带电导线控制的步进式磁屏蔽制造全磁性写磁头的方法
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申请号: US11956292申请日: 2007-12-13
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公开(公告)号: US20090152235A1公开(公告)日: 2009-06-18
- 发明人: Wen-Chien David Hsiao , Hieu Lam , Vladimir Nikitin , Sue Siyang Zhang , Yi Zheng
- 申请人: Wen-Chien David Hsiao , Hieu Lam , Vladimir Nikitin , Sue Siyang Zhang , Yi Zheng
- 主分类号: B44C1/22
- IPC分类号: B44C1/22
摘要:
A method for manufacturing a magnetic write head having a stepped trailing shield. The stepped trailing shield is formed by forming a non-magnetic bump over a write pole prior to electroplating a wrap-around magnetic shield. The method allows the location of the front edge of the bump relative to the back edge of the wrap-around shield to be monitored by measuring the electrical resistance of an electrical lapping guide formed concurrently with these features. This concurrent formation of a lapping guide can be used to define the relative location of other features as well, such as the location of a back edge of a wrap-around shield relative to a flare point of a write pole.