发明授权
- 专利标题: Solid electrolyte capacitor
- 专利标题(中): 固体电解电容器
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申请号: US09708014申请日: 2000-11-08
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公开(公告)号: US06313979B1公开(公告)日: 2001-11-06
- 发明人: Yutaka Taketani , Kakusyo Yoshida , Hidenori Kamigawa , Yasuhiro Kishimoto , Youichi Kojima , Takeshi Takamatsu
- 申请人: Yutaka Taketani , Kakusyo Yoshida , Hidenori Kamigawa , Yasuhiro Kishimoto , Youichi Kojima , Takeshi Takamatsu
- 优先权: JP9-276984 19971009; JP10-85379 19980331
- 主分类号: H01G900
- IPC分类号: H01G900
摘要:
The invention provides a process for producing solid electrolyte capacitors by forming a dielectric oxide film and a first cathode layer of solid conductive substance over the surface of an anode body of valve metal, and forming a second cathode layer of conductive high polymer on the first cathode layer by electrolytic oxidative polymerization. The second cathode layer is formed by immersing in the electrolyte the anode body formed over the surface thereof with the oxide film and the first cathode layer, feeding a positive voltage with an external electrode piece in contact with the first cathode layer in the electrolyte, and shifting the feeding point at a predetermined time interval.