Invention Grant
- Patent Title: Method of manufacture of a composite shared pole design for magnetoresistive merged heads
- Patent Title (中): 用于磁阻合并头的复合共轭极设计方法
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Application No.: US09283840Application Date: 1999-04-01
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Publication No.: US06393692B1Publication Date: 2002-05-28
- Inventor: Kochan Ju , Cherng-Chyi Han , Po-Kang Wang , Mao-Min Chen , Chun Liu , Jei-Wei Chang
- Applicant: Kochan Ju , Cherng-Chyi Han , Po-Kang Wang , Mao-Min Chen , Chun Liu , Jei-Wei Chang
- Main IPC: H04R3100
- IPC: H04R3100
Abstract:
A merged read/write magnetic recording head comprises a low magnetic moment first magnetic shield layer over a substrate. A read gap layer with a magnetoresistive head is formed over the first shield layer. A shared pole comprises a low magnetic moment second magnetic shield layer plated on a sputtered seed PLM layer over the read gap layer, a non-magnetic layer plated over the PLM layer and a HMM lower pole layer plated over the second magnetic shield layer. A write gap layer is formed over the first high magnetic moment pole layer of the shared pole. An upper pole comprises a high magnetic moment pole layer over the write gap layer.
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