发明授权
- 专利标题: Magnetoresistive sensor with reduced operating temperature
- 专利标题(中): 具有降低工作温度的磁阻传感器
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申请号: US10459820申请日: 2003-06-12
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公开(公告)号: US07064934B2公开(公告)日: 2006-06-20
- 发明人: Sining Mao , William P. Vavra , Eric S. Linville
- 申请人: Sining Mao , William P. Vavra , Eric S. Linville
- 申请人地址: US CA Scotts Valley
- 专利权人: Seagate Technology LLC
- 当前专利权人: Seagate Technology LLC
- 当前专利权人地址: US CA Scotts Valley
- 代理机构: Kinney & Lange, P.A.
- 主分类号: G11B5/39
- IPC分类号: G11B5/39
摘要:
A magnetoresistive (MR) sensor having reduced operating temperature is disclosed. The MR sensor, which includes an MR stack having a magnetoresistive layer, is configured to operate in a current-perpendicular-to-plane (CPP) mode wherein a sense current flows substantially perpendicular to a longitudinal plane of the magnetoresistive layer. The MR sensor further includes a thermal sink layer positioned with respect to the MR stack to reduce an operating temperature of the magnetoresistive sensor. The thermal sink layer is made of a material having high thermal conductivity, and is preferably separated from the MR stack by a metallic cap or seed layer.
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