Invention Grant
- Patent Title: Write transducers having high moment layer
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Application No.: US16274829Application Date: 2019-02-13
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Publication No.: US10650848B2Publication Date: 2020-05-12
- Inventor: Robert G. Biskeborn , Robert E. Fontana, Jr. , Calvin S. Lo
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Zilka-Kotab, P.C.
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/29 ; G11B5/265 ; G11B5/23 ; G11B5/147 ; G11B5/187 ; G11B5/008 ; G11B5/39

Abstract:
An apparatus, according to one embodiment, includes: an array of write transducers. Each of the write transducer include: a first write pole having a pole tip extending from a media facing side of the first write pole, and a second write pole having a pole tip extending from a media facing side of the second write pole. Each of the write transducers also include a nonmagnetic write gap between the pole tips of the write poles, a first high moment layer between the write gap and the pole tip of the second write pole, and a second high moment layer between the write gap and the pole tip of the first write pole. The first and second high moment layers each have a higher magnetic moment than magnetic moments of the pole tips of the second and first write poles, respectively.
Public/Granted literature
- US20190180775A1 WRITE TRANSDUCERS HAVING HIGH MOMENT LAYER Public/Granted day:2019-06-13
Information query
IPC分类: