发明名称 |
Thin film magnetic recording head, method of fabricating the thin film magnetic recording head and magnetic disk drive |
摘要 |
The invention fabricates a perpendicular recording head eliminating influence of external magnetic field and provides a magnetic disk drive having high stability by using the magnetic recording head and constructs a structure in which shield against external magnetic field is formed from a main pole via a gap layer and an edge portion thereof is recessed from a surface against a medium. By providing the shield against the external magnetic field, the influence of the external magnetic field is restrained and by recessing the edge from the surface against the medium, leakage of magnetic field from the shield against the external magnetic field to the medium is prevented to thereby prevent a magnetization signal from being erased.
|
申请公布号 |
US6785097(B2) |
申请公布日期 |
2004.08.31 |
申请号 |
US20020068986 |
申请日期 |
2002.02.11 |
申请人 |
HITACHI, LTD. |
发明人 |
OKADA TOMOHIRO;KAWATO YOSHIAKI;SUZUKI KAORI;FUKUI HIROSHI;NUNOKAWA ISAO |
分类号 |
G11B5/31;G11B5/00;G11B5/012;G11B5/127;G11B5/39;(IPC1-7):G11B5/11;G11B5/147 |
主分类号 |
G11B5/31 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|