Invention Grant
- Patent Title: Method and system for providing a perpendicular magnetic recording pole having a leading edge bevel
- Patent Title (中): 用于提供具有前缘斜面的垂直磁记录极的方法和系统
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Application No.: US12643954Application Date: 2009-12-21
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Publication No.: US08277669B1Publication Date: 2012-10-02
- Inventor: Tsung Yuan Chen , Yimin Guo , Jinqiu Zhang , Ut Tran
- Applicant: Tsung Yuan Chen , Yimin Guo , Jinqiu Zhang , Ut Tran
- Applicant Address: US CA Fremont
- Assignee: Western Digital (Fremont), LLC
- Current Assignee: Western Digital (Fremont), LLC
- Current Assignee Address: US CA Fremont
- Main IPC: B44C1/22
- IPC: B44C1/22

Abstract:
A method and system for providing a pole of magnetic transducer having an air-bearing surface (ABS) are described. Leading shield and planarization stop layers are provided. Portions of the planarization stop and shield layers distal from the ABS location are removed, providing a depression forming a bevel. The bevel has an angle greater than zero and less than ninety degrees. An intermediate layer having a top surface substantially perpendicular to the ABS location is provided. Part of the intermediate layer is removed, forming a trench having a bottom corresponding to the leading shield and a location and profile corresponding to the pole. A nonmagnetic layer is provided at least partially in the trench. The pole with a leading edge bevel corresponding to the bevel is provided in the trench. A capping layer covering the pole is provided, at least part of the intermediate layer removed, and a wrap-around shield provided.
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