发明授权
- 专利标题: Current perpendicular to plane magnetoresistance read head design using a current confinement structure proximal to an air bearing surface
- 专利标题(中): 电流垂直于平面磁阻读头设计,使用靠近空气轴承表面的电流限制结构
-
申请号: US12182701申请日: 2008-07-30
-
公开(公告)号: US08098463B2公开(公告)日: 2012-01-17
- 发明人: Hardayal S. Gill , Werner J. Douglas , Wipul P. Jayasekara , Wen-Chien Hsiao
- 申请人: Hardayal S. Gill , Werner J. Douglas , Wipul P. Jayasekara , Wen-Chien Hsiao
- 申请人地址: NL Amsterdam
- 专利权人: Hitachi Global Storage Technologies Netherlands, B.V.
- 当前专利权人: Hitachi Global Storage Technologies Netherlands, B.V.
- 当前专利权人地址: NL Amsterdam
- 代理机构: Duft Bornsen & Fishman, LLP
- 主分类号: G11B5/31
- IPC分类号: G11B5/31
摘要:
A current to perpendicular to plane (CPP) magnetoresistance (MR) read head using current confinement proximal to an air bearing surface (ABS) is disclosed. A CPP MR read head includes a first shield, an MR sensor formed on the first shield, and a second shield contacting the MR sensor proximal to an ABS. The CPP MR read head further includes insulating material between the MR sensor and the second shield, where the insulating material is distal to the ABS to electrically isolate the MR sensor from the second shield distal to the ABS. Sense current injected from the second shield through the MR sensor and into the first shield is confined proximal to the ABS at a location where the second shield contacts the MR sensor.
公开/授权文献
信息查询
IPC分类: