发明授权
US06621659B1 Recording head with throat height defined by nonmagnetic recess in shared pole
失效
记录头，喉部高度由共享杆上的非磁性凹槽限定
- 专利标题： Recording head with throat height defined by nonmagnetic recess in shared pole
- 专利标题（中）： 记录头，喉部高度由共享杆上的非磁性凹槽限定
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申请号： US09664270申请日： 2000-09-18
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公开(公告)号： US06621659B1公开(公告)日： 2003-09-16
- 发明人: Alexander M. Shukh , Edward S. Murdock
- 申请人： Alexander M. Shukh , Edward S. Murdock
- 主分类号： G11B5147
- IPC分类号： G11B5147
摘要：
A giant magnetoresistance recording head includes a writer having a top pole, a shared pole, a conductive coil and a write gap region. The top pole includes a first top pole piece and a second top pole piece. The second top pole piece is formed at least in part over the first top pole piece and is recessed from the air bearing surface. The first top pole piece is formed over a top flat surface of the shared pole and is separated from the shared pole by the write gap region. The shared pole has a recess on the top surface. The recess is placed under the top pole and filled with a non-magnetic material. The non-magnetic recess in the shared pole defines the throat height of the writer.
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