发明授权
- 专利标题： Soft magnetic film having high saturation magnetic flux density, thin film magnetic head using the same, and methods of producing the soft magnetic film and the thin film magnetic head
- 专利标题（中）： 具有高饱和磁通密度的软磁性膜，使用其的薄膜磁头以及制造软磁性膜和薄膜磁头的方法
-
申请号： US10041377申请日： 2002-01-08
-
公开(公告)号： US06801392B2公开(公告)日： 2004-10-05
- 发明人: Mitsuo Kawasaki , Yoshihiro Kanada
- 申请人： Mitsuo Kawasaki , Yoshihiro Kanada
- 优先权： JP2001-001471 20010109; JP2001-001458 20010109
- 主分类号： G11B5127
- IPC分类号： G11B5127
摘要：
A lower pole layer and/or an upper pole layer is formed by plating a NiFe alloy having a Fe composition ratio of 76% by mass to 90% by mass, or having an average crystal grain diameter of 130 Å to 175 Å and a Fe composition ratio of 70% by mass to 90% by mass. As a result, the saturation magnetic flux density can be increased to 1.9 T or more, and a thin film magnetic head excellent for a higher recording density can be manufactured.