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US 2009/0213495 A1Published application
Use of grating structures to control asymmetry in a magnetic sensor
AssigneeStorage Technology Corporation
InventorsKevin D. McKinstry, John P. Nibarger
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Abstract
The present invention provides apparatus and method for controlling the asymmetrical properties of the response of a magnetic sensor element to a magnetic field produced by the digital data in a magnetic storage device. The present invention also provides an apparatus and method for controlling the bias point of a magnetic field produced by a magnetic sensor element.
Claims16
A method of controlling asymmetry of a response of a magnetic sensor, the method comprising:
- establishing a grating disposed with respect to a magnetic sensor;
- and
- controlling properties of the grating to control the asymmetry of the response of the magnetic field of the magnetic sensor.
A method in a magnetic sensor, the method comprising:
- establishing a grating disposed with respect to a magnetic sensor;
- and
- controlling properties of the grating to control a bias point of a magnetic field of the magnetic sensor.
A magnetic sensor comprising:
- a substrate;
- at least one lead disposed on the substrate;
- and
- a directional, contact bearing surface magnetic sensor element disposed on the substrate and operably connected to the at least one lead, the magnetic sensor element having a zigzag shape maintained on a far side of the magnetic sensor element, a near side of the magnetic sensor element that comes in contact with a surface omitting the zigzag shape.
1 more element
Dependencies are inferred from the claim text.