发明授权
- 专利标题: Perpendicular magnetic recording head
- 专利标题(中): 垂直磁记录头
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申请号: US13372316申请日: 2012-02-13
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公开(公告)号: US08310785B1公开(公告)日: 2012-11-13
- 发明人: Jinqiu Zhang , Liubo Hong , Yong Shen , Hongping Yuan , Tsung Yuan Chen , Honglin Zhu
- 申请人: Jinqiu Zhang , Liubo Hong , Yong Shen , Hongping Yuan , Tsung Yuan Chen , Honglin Zhu
- 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
- 主分类号: G11B5/127
- IPC分类号: G11B5/127
摘要:
A perpendicular magnetic recording (PMR) head comprises a PMR pole having at least one side, a bottom, and a top wider than the bottom, a first portion of the at least one side being substantially vertical, a second portion of the at least one side being nonvertical, the top portion having a width not greater than one hundred fifty nanometers. The PRM head further comprises a nonmagnetic layer surrounding the bottom and the at least one side of the PMR pole, an intermediate layer substantially surrounding at least the second portion of the at least one side of the PMR pole, and a hard mask layer adjacent to the first portion of the at least one side of the PMR pole.
公开/授权文献
- US1256864A Composition of matter. 公开/授权日:1918-02-19
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