Invention Grant
- Patent Title: Sensor stabilization in a multiple sensor magnetic reproducing device
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Application No.: US14793988Application Date: 2015-07-08
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Publication No.: US09685177B2Publication Date: 2017-06-20
- Inventor: Zhiguo Ge , Shaun E. Mckinlay , Eric W. Singleton , LiWen Tan , Jae Young Yi
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Westman, Champlin & Koehler, P.A.
- Main IPC: G11B5/39
- IPC: G11B5/39 ; G11B5/127

Abstract:
A multi-sensor reader that includes a first sensor that has a sensing layer with a magnetization that changes according to an external magnetic field. The first sensor also includes first and second side biasing magnets having a magnetization substantially along a first direction. The first and second side biasing magnets align the magnetization of the sensing layer substantially along the first direction when the sensing layer is not substantially influenced by the external magnetic field. The multi-sensor reader further includes a second sensor that is stacked over the first sensor. The second sensor includes a reference layer that has a magnetization that is set substantially along a second direction. The first sensor further includes at least one sensor-stabilization feature that counteracts an influence of a magnetic field utilized to set the magnetization of the reference layer of the second sensor in the second direction on the magnetization of at least one of the first and second side biasing magnets in the first direction.
Public/Granted literature
- US20170011759A1 SENSOR STABILIZATION IN A MULTIPLE SENSOR MAGNETIC REPRODUCING DEVICE Public/Granted day:2017-01-12
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