Invention Grant
- Patent Title: Method for providing a perpendicular magnetic recording (PMR) head
- Patent Title (中): 提供垂直磁记录（PMR）头的方法
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Application No.: US11936167Application Date: 2007-11-07
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Publication No.: US08015692B1Publication Date: 2011-09-13
- Inventor: Lei Larry Zhang , Yong Shen , Honglin Zhu , Yizhong Wang
- Applicant: Lei Larry Zhang , Yong Shen , Honglin Zhu , Yizhong Wang
- Applicant Address: US CA Fremont
- Assignee: Western Digital (Fremont), LLC
- Current Assignee: Western Digital (Fremont), LLC
- Current Assignee Address: US CA Fremont
- Main IPC: G11B5/127
- IPC: G11B5/127 ; H04R31/00
Abstract:
A method for providing a perpendicular magnetic recording head includes providing a metal underlayer and forming a trench in the metal underlayer. The trench has a bottom and a top wider than the bottom. The method also includes providing a PMR pole. At least a portion of the PMR pole resides in the trench. The method also includes providing a write gap on the PMR pole and providing a top shield on at least the write gap.
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