Invention Grant
- Patent Title: Exchange coupling film having improved wettability of seed layer
- Patent Title (中): 具有改善种子层润湿性的交换耦合膜
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Application No.: US10197654Application Date: 2002-07-17
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Publication No.: US06862158B2Publication Date: 2005-03-01
- Inventor: Naoya Hasegawa , Masamichi Saito , Kenichi Tanaka
- Applicant: Naoya Hasegawa , Masamichi Saito , Kenichi Tanaka
- Applicant Address: JP Tokyo
- Assignee: Alps Electric Co., Ltd.
- Current Assignee: Alps Electric Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2001-219426 20010719
- Main IPC: G01R33/09
- IPC: G01R33/09 ; G11B5/39 ; H01F10/32 ; H01F41/30 ; H01L43/08
Abstract:
A seed layer is formed of a Cr film with a thickness of 15 Å or more and 50 Å or less comprising at least partially an amorphous phase, thereby enabling wettability of the surface the seed layer to be remarkably improved as compared with conventional one, the unidirectional bias magnetic field in the pinned magnetic layer to be increased, and the surface of each layer on the seed layer to have good lubricity.
Public/Granted literature
- US20030063415A1 Exchange coupling film having improved wettability of seed layer Public/Granted day:2003-04-03
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