发明授权
US5552030A Method of making a magnetic material in the form of a multilayer film by
plating
失效
通过电镀制作多层膜形式的磁性材料的方法
- 专利标题： Method of making a magnetic material in the form of a multilayer film by plating
- 专利标题（中）： 通过电镀制作多层膜形式的磁性材料的方法
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申请号： US196062申请日： 1994-02-22
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公开(公告)号： US5552030A公开(公告)日： 1996-09-03
- 发明人: Kazuo Shimizu , Motonobu Onoda , Takeji Tsuchiya , Tohru Watanabe
- 申请人： Kazuo Shimizu , Motonobu Onoda , Takeji Tsuchiya , Tohru Watanabe
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Piston Ring Co., Ltd.
- 当前专利权人： Nippon Piston Ring Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-280861 19920925
- 主分类号： C25D3/56
- IPC分类号： C25D3/56 ; C25D5/10 ; C25D5/50 ; H01F10/32 ; H01F41/26 ; H01F41/30 ; C25D5/18 ; C25D11/00
摘要：
The present invention is directed to a method of applying a magnetic thin film on a substrate by alloy electroplating in which the alloy content in the deposition is defined by an electric current density in the course of the plating operation. The magnetic thin film is superior in uniformity and formability on a complicated substrate. The method comprises the step of changing the electric current density from a low value to a high value, and vice versa at predetermined intervals during plating to laminate different alloy-content plated layers into a multilayer thin film, and improving the magnetic characteristics of the film by heat treatment.
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