发明名称 |
Process for producing planar magnetic heads by making cells in a non-magnetic board, and magnetic heads obtained by such a process. |
摘要 |
<p>A method of simultaneous manufacture of a plurality of planar magnetic heads on a wafer or a slab made of non-magnetic material designed to be cut out to separate each head. The method can be applied to magnetic heads of the type including a micro-gap formed between two magnetic poles, facing a gap defined between two wire-wound ferrite cores. The method consists in depositing said thin layer magnetic poles on a first face of a wafer made of non-magnetic material and in hollowing out, in the face opposite to said wafer, at least one cavity for housing said wire-wound cores so as to obtain a calibrated spacing or a junction between the upper part of each of said wire-wound cores and said thin layer magnetic poles.</p> |
申请公布号 |
EP0407244(B1) |
申请公布日期 |
1994.08.31 |
申请号 |
EP19900401677 |
申请日期 |
1990.06.15 |
申请人 |
THOMSON-CSF |
发明人 |
MEUNIER, PAUL-LOUIS;COUTELLIER, JEAN-MARC;LEHUREAU, JEAN-CLAUDE |
分类号 |
G11B5/127;G11B5/187;G11B5/31;(IPC1-7):G11B5/31 |
主分类号 |
G11B5/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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