Invention Grant
- Patent Title: Method for screening magnetic-recording heads
- Patent Title (中): 磁记录头的筛选方法
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Application No.: US12115461Application Date: 2008-05-05
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Publication No.: US08174781B2Publication Date: 2012-05-08
- Inventor: Scott E. Heeren , Masaki Kohno , Tue Ngo
- Applicant: Scott E. Heeren , Masaki Kohno , Tue Ngo
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Main IPC: G11B5/455
- IPC: G11B5/455 ; G01R33/00

Abstract:
A method for screening a magnetic-recording head utilizing a simulated-cross-track-gain profile of the magnetic-recording head to provide a manufacturing-qualified, magnetic-recording head. The method includes measuring a track profile of the magnetic-recording head, and providing the simulated-cross-track-gain profile of the magnetic-recording head synthesized utilizing the track profile of the magnetic-recording head. The method also includes calculating a peak-to-peak value of the simulated-cross-track-gain profile, and applying a selection criterion based on the peak-to-peak value of the simulated-cross-track-gain profile to screen the magnetic-recording head for use as the manufacturing-qualified, magnetic-recording head.
Public/Granted literature
- US20090273854A1 METHOD FOR SCREENING MAGNETIC-RECORDING HEADS Public/Granted day:2009-11-05
Information query
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