发明授权
US06989972B1 Magnetoresistive sensor with overlapping leads having distributed current
有权
具有重叠引线的磁阻传感器具有分布电流
- 专利标题: Magnetoresistive sensor with overlapping leads having distributed current
- 专利标题(中): 具有重叠引线的磁阻传感器具有分布电流
-
申请号: US10261119申请日: 2002-09-30
-
公开(公告)号: US06989972B1公开(公告)日: 2006-01-24
- 发明人: Kroum Stoev , Mathew Gibbons , Francis Liu , Bogdan M. Simion , Aparna C. Vadde , Jing Zhang , Yiming Huai , Marcos M. Lederman
- 申请人: Kroum Stoev , Mathew Gibbons , Francis Liu , Bogdan M. Simion , Aparna C. Vadde , Jing Zhang , Yiming Huai , Marcos M. Lederman
- 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
- 代理机构: Sawyer Law Group LLP
- 代理商 Joshua C. Harrison, Esq.
- 主分类号: G11B5/39
- IPC分类号: G11B5/39
摘要:
Magnetoresistive (MR) sensors have leads that overlap a MR structure and distribute current to the MR structure so that the current is not concentrated in small portions of the leads. An electrically resistive capping layer can be formed between the leads and the MR structure to distribute the current. The leads can include resistive layers and conductive layers, the resistive layers having a thickness-to-resistivity ratio that is greater than that of each of the conductive layers. The resistive layers may protect the conductive layers during MR structure etching, so that the leads have broad layers of electrically conductive material for connection to MR structures. The broad leads conduct heat better than the read gap material that they replace, further reducing the temperature at the connection between the leads and the MR structure.
信息查询
IPC分类: