Invention Grant
- Patent Title: Tape head design having an antiferromagnetic coupling (AFC) null shield for same gap verify
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Application No.: US17396213Application Date: 2021-08-06
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Publication No.: US11646054B2Publication Date: 2023-05-09
- Inventor: Quang Le , Xiaoyong Liu , Kuok San Ho , Hisashi Takano
- Applicant: Western Digital Technologies, Inc.
- 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: Patterson + Sheridan, LLP
- Agent Steven H. VerSteeg
- Main IPC: G11B5/48
- IPC: G11B5/48 ; G11B5/265 ; G11B5/29 ; G11B5/008 ; G11B5/23 ; G11B5/39 ; G11B5/11 ; G11B5/592

Abstract:
The present disclosure generally relates to a tape drive including a tape head. The tape head comprises at least one same gap verify (SGV) module comprising a plurality of write transducer and read transducer pairs disposed on a substrate. Each pair comprises a null shield disposed between the write transducer and the read transducer. The null shield is used to create a null region, or a region where write flux goes to zero, and comprises laminated antiferromagnetic coupling materials to protect writer flux from going to the read transducer. The read transducer is disposed in the null region. The SGV module is configured to write data to a tape using the write transducer of each pair and read verify the data written on the tape using the read transducer of each pair such that the write transducer and read transducer of each pair are concurrently operable.
Public/Granted literature
- US20230040698A1 Tape Head Design Having An Antiferromagnetic Coupling (AFC) Null Shield For Same Gap Verify Public/Granted day:2023-02-09
Information query
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