- 专利标题: Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the same
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申请号: US10903977申请日: 2004-07-29
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公开(公告)号: US20050007696A1公开(公告)日: 2005-01-13
- 发明人: Yingjian Chen , Xiaozhong Dang , Francis Liu , Kroum Stoev , Hai Jiang , Yugang Wang , Xizeng Shi
- 申请人: Yingjian Chen , Xiaozhong Dang , Francis Liu , Kroum Stoev , Hai Jiang , Yugang Wang , Xizeng Shi
- 申请人地址: US CA Fremont
- 专利权人: Western Digital (Fremont), Inc.
- 当前专利权人: Western Digital (Fremont), Inc.
- 当前专利权人地址: US CA Fremont
- 主分类号: G11B5/127
- IPC分类号: G11B5/127 ; G11B5/31 ; G11B5/147
摘要:
A read/write head and method of making the same are used in a data storage system, such as a disk drive, for perpendicular magnetic recording of data. The head employs a two-layer pole design with a main pole made of sputtered high moment magnetic material, and an adjunct pole made of electroplated soft magnetic film. The main pole is used to write data onto the medium, and is formed over the write coil. The adjunct pole is substantially recessed from the air bearing surface and is formed over the main pole. The present head design significantly enhances the magnetic write field, and substantially reduces side-writing that result in accidental erasure of data in adjacent tracks on the magnetic recording medium.
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