发明名称 |
CPP-GMR Sensor for Electronic Compass |
摘要 |
CPP-GMR sensors and methods for making them are disclosed. In an implementation, a CPP-GMR sensor comprises: a substrate; an antiferromagnetic (AFM) layer formed on the substrate; a magnetic pin layer formed on the AFM layer; a first wire electrically coupled to the pin layer; a non-magnetic spacer layer formed on the pin layer, the spacer layer insulated from the first wire by electrical insulation material; a sensing layer formed on the spacer layer; a protective layer formed on the sensing layer; and a second wire formed on the protective layer, the second wire electrically coupled to the first wire through the protective layer, the sensing layer, the spacer layer and the pin layer. |
申请公布号 |
US2017082698(A1) |
申请公布日期 |
2017.03.23 |
申请号 |
US201514860622 |
申请日期 |
2015.09.21 |
申请人 |
Apple Inc. |
发明人 |
Choi Hyuk J. |
分类号 |
G01R33/09;H01L43/12;H01L43/10 |
主分类号 |
G01R33/09 |
代理机构 |
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代理人 |
|
主权项 |
1. A current-perpendicular-to-plane, giant magnetoresistance (CPP-GMR) sensor comprising:
a substrate; an antiferromagnetic (AFM) layer formed on the substrate; a magnetic pin layer formed on the AFM layer; a first wire electrically coupled to the pin layer; a non-magnetic spacer layer formed on the pin layer, the spacer layer insulated from the first wire by electrical insulation material; a sensing layer formed on the spacer layer; a protective layer formed on the sensing layer; and a second wire formed on the protective layer, the second wire electrically coupled to the first wire through the protective layer, the sensing layer, the spacer layer and the pin layer. |
地址 |
Cupertino CA US |