发明申请
- 专利标题: SOLID ELECTROLYTIC CAPACITOR WITH SMALL LEAKAGE CURRENT AND METHOD OF MANUFACTURING THE SAME
- 专利标题(中): 具有小泄漏电流的固体电解电容器及其制造方法
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申请号: US13236196申请日: 2011-09-19
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公开(公告)号: US20120002350A1公开(公告)日: 2012-01-05
- 发明人: Naoki TAKAHASHI , Toshihiko Nishiyama , Satoshi Suzuki , Ryuta Kobayakawa , Tomoki Nobuta
- 申请人: Naoki TAKAHASHI , Toshihiko Nishiyama , Satoshi Suzuki , Ryuta Kobayakawa , Tomoki Nobuta
- 申请人地址: JP Sendai-shi
- 专利权人: NEC TOKlN CORPORATION
- 当前专利权人: NEC TOKlN CORPORATION
- 当前专利权人地址: JP Sendai-shi
- 优先权: JP2007-288486 20071106
- 主分类号: H01G9/15
- IPC分类号: H01G9/15
摘要:
A solid electrolytic capacitor includes an anode formed of a valve metal and having a roughened surface layer at a surface thereof, a dielectric layer formed of a valve metal oxide and formed on the anode, a cathode formed of a conductive polymer layer formed on the dielectric layer, an anode lead formed adjacent to and integrally with the anode, and a resist formed of an insulating material and delimiting the anode and the anode lead. The anode and the anode lead have a first stepped portion having both surfaces each cut in a thickness direction and covered with the resist, and the anode lead has a second stepped portion having both surfaces each cut deeper in the thickness direction than the first stepped portion.
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