发明授权
US07443632B1 Magnetic head with stitched top pole layer and single layer coil or solenoidal coil
有权
磁头采用缝合顶极层和单层线圈或螺线管线圈
- 专利标题: Magnetic head with stitched top pole layer and single layer coil or solenoidal coil
- 专利标题(中): 磁头采用缝合顶极层和单层线圈或螺线管线圈
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申请号: US11780110申请日: 2007-07-19
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公开(公告)号: US07443632B1公开(公告)日: 2008-10-28
- 发明人: Kroum S. Stoev , Francis H. Liu , Yugang Wang
- 申请人: Kroum S. Stoev , Francis H. Liu , Yugang Wang
- 申请人地址: US CA Fremont
- 专利权人: Western Digital (Fremont), LLC
- 当前专利权人: Western Digital (Fremont), LLC
- 当前专利权人地址: US CA Fremont
- 代理机构: Strategic Patent Group
- 代理商 Jonathan E. Prejean, Esq.
- 主分类号: G11B5/127
- IPC分类号: G11B5/127 ; G11B5/147
摘要:
A magnetic head is disclosed that has first and second substantially flat soft magnetic pole layers that are magnetically coupled together in a backgap region that is removed from the medium-facing surface; a soft magnetic pedestal having a leading edge and a trailing edge, the trailing edge adjoining the second pole layer adjacent to the medium-facing surface, the leading edge defining a throat area that is spaced from the first pole layer by a submicron nonferromagnetic gap and defining an apex area that is spaced from the first pole layer by a greater separation than the gap, the throat area meeting the apex area at a throat height; and a plurality of substantially parallel, electrically conductive sections disposed between the first and second pole layers, the conductive sections disposed in a single layer that is aligned along a plane that intersects the pedestal and the backgap region.
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