- 专利标题: Magnetic recording devices having cross-track current flow to facilitate downtrack magnetic field enhancements
-
申请号: US17183155申请日: 2021-02-23
-
公开(公告)号: US11508401B1公开(公告)日: 2022-11-22
- 发明人: Muhammad Asif Bashir , Petrus Antonius Van Der Heijden , James Terrence Olson , Alexander Goncharov , Zhigang Bai , Yunfei Ding
- 申请人: Western Digital Technologies, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Western Digital Technologies, Inc.
- 当前专利权人: Western Digital Technologies, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Patterson & Sheridan, LLP
- 代理商 Steven H. VerSteeg
- 主分类号: G11B11/105
- IPC分类号: G11B11/105 ; G11B5/31
摘要:
Aspects of the present disclosure generally relate to a magnetic recording head of a magnetic recording device that facilitates generating a downtrack magnetic bias field to enhance writing. During magnetic writing using the magnetic recording head, a bias current is directed in a cross-track direction on the trailing side of the main pole. Bias current flowing in the cross-track direction on a leading side of the main pole is reduced or eliminated. The bias current flowing in the cross-track direction on the trailing side of the main pole facilitates generating a magnetic field in a downtrack direction. The magnetic field in the downtrack direction is a bias field generated using the bias current. The magnetic bias field in the downtrack direction facilitates enhanced writing performance and increased areal density capability (ADC) for magnetic recording.
信息查询
IPC分类: