发明授权
- 专利标题： Wheatstone-bridge magnetoresistive device
- 专利标题（中）： 惠斯通电桥磁阻器件
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申请号： US11860737申请日： 2007-09-25
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公开(公告)号： US08415755B2公开(公告)日： 2013-04-09
- 发明人: Fernando J. Castano , Caroline A. Ross
- 申请人： Fernando J. Castano , Caroline A. Ross
- 申请人地址： US MA Cambridge
- 专利权人： Massachusetts Institute of Technology
- 当前专利权人： Massachusetts Institute of Technology
- 当前专利权人地址： US MA Cambridge
- 代理机构： Gesmer Updegrove LLP
- 主分类号： H01L29/82
- IPC分类号： H01L29/82 ; H01L21/02
摘要：
A magnetoresistive Wheatstone-bridge structure includes a magnetoresistive ring structure. The magnetoresistive ring structure includes a first magnetic layer comprising a ferromagnetic material. A second magnetic layer also includes a ferromagnetic material. A non-magnetic spacer is positioned between the first magnetic layer and the second magnetic layer. A vacant open region is positioned in the center region of the magnetoresistive ring structure. A plurality of magnetic states can exist in either the first magnetic layer or second magnetic layer. Furthermore, the magnetoresistive Wheatstone-bridge structure includes a plurality of voltage and current contacts arranged symmetrically upon the magnetoresistive ring structure. The magnetic state of the ring is detected by measuring its resistance.
公开/授权文献
- US20080074224A1 WHEATSTONE-BRIDGE MAGNETORESISTIVE DEVICE 公开/授权日：2008-03-27
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