发明授权
- 专利标题： Thin-film magnetic head for reducing track width, preventing write fringing and reducing magnetic saturation, and production method thereof
- 专利标题（中）： 用于减小轨道宽度的薄膜磁头，防止写入和减小磁饱和度及其制造方法
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申请号： US09643919申请日： 2000-08-23
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公开(公告)号： US06636381B1公开(公告)日： 2003-10-21
- 发明人: Kiyoshi Sato , Hideki Gochou , Kiyoshi Kobayashi , Hisayuki Yazawa , Akira Koyama , Minoru Yamada
- 申请人： Kiyoshi Sato , Hideki Gochou , Kiyoshi Kobayashi , Hisayuki Yazawa , Akira Koyama , Minoru Yamada
- 优先权： JP11-243430 19990830; JP2000-192385 20000627
- 主分类号： G11B5127
- IPC分类号： G11B5127
摘要：
A track width regulating section having a track width, which is smaller than the resolution obtained by the wavelength of the light used for exposure and development of a resist, is formed between a lower core layer and an upper core layer. Since the width of the upper core layer is larger than the track width, magnetic saturation can be effectively reduced. Inclined faces are formed on the upper surface of the lower core layer so as to be inclined in directions away from the track width regulating section, thereby adequately preventing write fringing.
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