发明授权
- 专利标题: Method of manufacturing a thin-film magnetic head using a soft magnetic film having high saturation magnetic flux density
- 专利标题(中): 使用具有高饱和磁通密度的软磁膜制造薄膜磁头的方法
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申请号: US10833359申请日: 2004-07-16
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公开(公告)号: US07396445B2公开(公告)日: 2008-07-08
- 发明人: Mitsuo Kawasaki , Yoshihiro Kanada
- 申请人: Mitsuo Kawasaki , Yoshihiro Kanada
- 申请人地址: JP Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Brinks Hofer Gilson & Lione
- 优先权: JP2001-005911 20010115
- 主分类号: C25D5/02
- IPC分类号: C25D5/02 ; C25D5/18 ; C25D3/56
摘要:
A soft magnetic film is formed of a CoFe alloy having an Fe content in the range of 68 to 80 mass %, thereby having a saturation magnetic flux density of 2.0 T or more. The center lain average roughness of the film surface is 9 nm or less. The soft magnetic film can achieve a corrosive resistant magnetic head with a high recording density.