公开(公告)号：US5390074A

公开(公告)日：1995-02-14

申请号：US948577

申请日：1992-09-23

申请人： Nobuo Hasegawa ,  Sumio Nishiyama ,  Hideto Yamaguchi ,  Takashi Ida ,  Junichi Kurita ,  Koji Ueoka ,  Yasuhiro Kobashi ,  Hideo Hashimoto

发明人： Nobuo Hasegawa ,  Sumio Nishiyama ,  Hideto Yamaguchi ,  Takashi Ida ,  Junichi Kurita ,  Koji Ueoka ,  Yasuhiro Kobashi ,  Hideo Hashimoto

IPC分类号： H01G9/00 ,  H01G9/012 ,  H01G9/15 ,  H01G9/05 ,  H01G9/24

CPC分类号： H01G9/012 ,  H01G9/15 ,  Y10T29/417

摘要： A chip-type solid electrolytic capacitor includes a cathode conductive layer provided on a whole surface of a cathode layer formed on an outer surface of a capacitor element, which whole surface is opposite to a surface where an anode lead wire is lead out, and on a surface adjacent to the first-mentioned whole surface. With this arrangement, if the capacitor element is obliquely inserted into a mold during the formation of a resin shell, the inner walls of the mold will not come into contact with cathode layer of the capacitor element, but will instead come into contact with the cathode conductive layer to prevent the cathode layer from being exposed to the resin shell. As a result, any possible damage to the cathode layer of the capacitor element when the peripheral surface of the resin shell on a cathode side is subjected to roughening is prevented to eliminate defects in electric characteristics such as leakage of electric current and a tan.delta. value.

摘要翻译： 芯片型固体电解电容器包括阴极导电层，阴极导电层设置在形成于电容器元件的外表面的阴极层的整个表面上，整个表面与阳极引线导出的表面相反，并且导通 与第一个提及的整个表面相邻的表面。 通过这种布置，如果电容器元件在形成树脂壳时倾斜地插入模具中，则模具的内壁将不会与电容器元件的阴极层接触，而是与阴极接触 导电层，以防止阴极层暴露于树脂壳体。 结果，防止当阴极侧的树脂壳体的外周表面经受粗糙化时对电容器元件的阴极层的任何可能的损坏，以消除电特性的缺陷，例如电流泄漏和tanδ值 。

公开(公告)号：US5005107A

公开(公告)日：1991-04-02

申请号：US446908

申请日：1989-12-06

申请人： Yasuhiro Kobashi ,  Tsutomu Irikura

发明人： Yasuhiro Kobashi ,  Tsutomu Irikura

IPC分类号： H01G9/00 ,  H01G9/15

CPC分类号： H01G9/15

摘要： A solid electrolytic capacitor of this invention comprises an electrode provided with an anode lead; a dielectric oxide film, a solid electrolyte layer, a carbon layer, and a cathode layer, which are successively formed on the surface of the electrode; a positive terminal connected to the anode lead; and a negative terminal connected to the cathode layer by means of an electrically conductive adhesive; wherein at least one of the cathode layer and the electrically conductive adhesive comprises a polymer and an electrically conductive powder containing palladium. The capacitor displays little variation in the value of tan .delta. and slight changes in current leakage even when the capacitor is placed under conditions of high temperature and humidity. Moreover, electrical short-circuit failure of the capacitor rarely occurs.