Invention Grant
- Patent Title: Gradient write gap for perpendicular magnetic recording writer
- Patent Title (中): 垂直磁记录器的渐变写入间隙
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Application No.: US14096503Application Date: 2013-12-04
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Publication No.: US09042051B2Publication Date: 2015-05-26
- Inventor: Li Zeng , Dehua Han , Zhigang Bai , Lisha Wang
- Applicant: Western Digital (Fremont), LLC
- Applicant Address: US CA Fremont
- Assignee: Western Digital (Fremont), LLC
- Current Assignee: Western Digital (Fremont), LLC
- Current Assignee Address: US CA Fremont
- Main IPC: G11B5/23
- IPC: G11B5/23 ; C23C16/40 ; G11B5/187
Abstract:
The present disclosure provides for a magnetic writer pole for use in a hard drive. The magnetic writer pole comprises a first bevel formed by a non-magnetic layer, the first bevel formed at a first angle and extending to a first throat height. The magnetic writer pole further comprises a second bevel formed by the non-magnetic layer and extending distally from the first bevel at a second angle that is greater than the first angle and extending to a second throat height. The magnetic writer pole further comprises a third bevel formed by the non-magnetic layer and extending distally from the second bevel at a third angle that is greater than the second angle.
Public/Granted literature
- US20150049400A1 GRADIENT WRITE GAP FOR PERPENDICULAR MAGNETIC RECORDING WRITER Public/Granted day:2015-02-19
Information query
IPC分类:
