Invention Grant
- Patent Title: Method for manufacturing a magnetoresistive sensor using simultaneously formed hard bias and electrical lapping guide
- Patent Title (中): 使用同时形成的硬偏置和电研磨导向器制造磁阻传感器的方法
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Application No.: US13172739Application Date: 2011-06-29
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Publication No.: US08778198B2Publication Date: 2014-07-15
- Inventor: Quang Le , Shin Funada , Jui-Lung Li
- Applicant: Quang Le , Shin Funada , Jui-Lung Li
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC`
- Main IPC: B44C1/22
- IPC: B44C1/22

Abstract:
A method for manufacturing a magnetic sensor using an electrical lapping guide deposited and patterned simultaneously with a hard bias structure of the sensor material. The method includes depositing a sensor material, and patterning and ion milling the sensor material to define a track width of the sensor. A magnetic, hard bias material is then deposited and a second patterning and ion milling process is performed to simultaneously define the back edge of an electrical lapping guide and a back edge of the sensor.
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