发明名称 |
Vertical magnetic head having a magnetic circuit with a non-embedded part and having an integrated coil surrounding the non-embedded part |
摘要 |
PCT No. PCT/FR97/00284 Sec. 371 Date Aug. 17, 1998 Sec. 102(e) Date Aug. 17, 1998 PCT Filed Feb. 14, 1997 PCT Pub. No. WO97/30442 PCT Pub. Date Aug. 21, 1997Magnetic head for use in magnetic recording and including an integrated coil having at least one winding around a non-embedded part of the magnetic circuit. The winding includes a lower sheet of conductors placed in a chamber etched in the substrate and which is integrated into this substrate. The magnetic head is manufactured in a process including forming on a solid substrate a magnetic circuit with a first and second polar part having embedded portions positioned side by side and separated by a nonmagnetic air gap. The magnetic circuit includes at least one non-embedded bridging part no portion of which is embedded in the substrate. A conductor coil is formed around the non-embedded part of the circuit by making a lower sheet of conductors passing underneath the non-embedded bridging part and by embedding the lower sheet in at least one chamber made in the substrate, and by making an upper sheet of conductors astride the non-embedded bridging part of the magnetic circuit.
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申请公布号 |
US6163435(A) |
申请公布日期 |
2000.12.19 |
申请号 |
US19980125107 |
申请日期 |
1998.08.17 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
GAUD, PIERRE;SIBUET, HENRI;DI GIOIA, MICHEL |
分类号 |
G11B5/127;G11B5/17;G11B5/31;(IPC1-7):G11B5/17 |
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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