Invention Grant
US08749920B1 Magnetic recording head with dynamic fly height heating and having thermally controlled pole tip protrusion to control and protect reader element
有权
磁记录头具有动态飞行高度加热，并具有热控极尖突起，用于控制和保护读卡器元件
- Patent Title: Magnetic recording head with dynamic fly height heating and having thermally controlled pole tip protrusion to control and protect reader element
- Patent Title (中): 磁记录头具有动态飞行高度加热，并具有热控极尖突起，用于控制和保护读卡器元件
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Application No.: US13328688Application Date: 2011-12-16
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Publication No.: US08749920B1Publication Date: 2014-06-10
- Inventor: Neil Knutson , David E. Fowler , Yu Lo
- Applicant: Neil Knutson , David E. Fowler , Yu Lo
- 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
Abstract:
A magnetic recording device includes a slider having an air bearing surface (ABS), a leading side, and a trailing side and a head residing on the slider. The head has a first magnetic transducer and a first heater for heating an area proximal to the first magnetic transducer. A first shield (S1) comprising a first material is on the leading side of the first magnetic transducer and a second shield (S2) comprising the first material is on the trailing side of the first magnetic transducer. A first pole (P1) comprising the first material is on the trailing side of the second shield (S2), and the first pole (P1) is between 0.6 micron and 2.0 micron thick; and the second shield (S2) is less than 0.6 micron thick. A hard disk drive includes the magnetic recording device.
Information query
IPC分类:
