Invention Grant
- Patent Title: Magnetic read head with floating trailing shield
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Application No.: US15068476Application Date: 2016-03-11
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Publication No.: US10008224B2Publication Date: 2018-06-26
- Inventor: Takahiro Ibusuki , Kouji Kataoka , Takashi Wagatsuma , Norihiro Okawa , Yukimasa Okada
- Applicant: HGST Netherlands B.V.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Foley & Lardner LLP
- Main IPC: G11B5/39
- IPC: G11B5/39 ; G11B5/31

Abstract:
A magnetic read element having an additional magnetic layer, “a floating magnetic shield”, formed as a part of a capping structure of a magnetoresistive element. The capping structure is formed over the magnetic free layer and includes a magnetic layer that is located between first and second non-magnetic layers. The magnetic layer can advantageously be formed with a high magnetic permeability for increased signal amplitude and increased signal resolution. In addition, because the magnetic layer of the capping layer structure acts as a magnetic shield, it can reduce effective magnetic gap spacing for increased signal resolution.
Public/Granted literature
- US20170263273A1 MAGNETIC READ HEAD WITH FLOATING TRAILING SHIELD Public/Granted day:2017-09-14
Information query
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