发明名称 |
MAGNETIC HEAD AND MAGNETIC DISK DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic head which can increase a magnetic field that is generated at the tip of a write head by improving the efficiency of a magnetic circuit and decreasing the leaked magnetic flux. SOLUTION: The upper magnetic core of a magnetic head includes an upper magnetic core tip part 104 which is opposite to the surface of a recording medium and an upper magnetic core rear part 110 which is connected to the part 104. The rear end face of the part 104 is connected to the front end face of the part 110 to form a connection surface 114 on the extended surface of an insulating layer 103 that is prepared under a coil 107 or on a contact hole that is prepared at the back of the part 104 set on the extended surface of the layer 103. The surface 114 is formed substantially vertical to the surface of a substrate or at an angle of <=15 degrees to a surface that is parallel to the sliding surface of the magnetic head.
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申请公布号 |
JP2001110007(A) |
申请公布日期 |
2001.04.20 |
申请号 |
JP19990285311 |
申请日期 |
1999.10.06 |
申请人 |
HITACHI LTD |
发明人 |
TAKAHASHI HIROMASA;NARUMI SHUNICHI;KUDO KAZUE;HOSHIYA HIROYUKI;FUYAMA MORIAKI |
分类号 |
G11B5/31;(IPC1-7):G11B5/31 |
主分类号 |
G11B5/31 |
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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