Solid electrolytic capacitor
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United States of America Patent
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-
Apr 17, 2001
Grant Date -
N/A
app pub date -
Dec 21, 1999
filing date -
Dec 21, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides a solid electrolytic capacitor including a bottomed tubular case 4, a capacitor element 1 enclosed in the case 4, and a hermetic seal structure 7 sealing off an opening of the case 4. The opening of the case 4 is closed with a disklike seal plate 71 having a pair of through holes 76, 76. A pair of pipe members 73, 73 are inserted through the respective holes 76, 76 of the seal plate 71. Each of the pipe members 73 includes a ceramic pipe piece 74, and a gold thin film 75 formed at least over the inner periphery of the pipe piece 74. A clearance in each hole 76 of the seal plate 71 is filled with a glass material 72. A pair of lead pins 13, 13 extending from the capacitor element 1 extend through center bores of the pipe members 73, 73, respectively. A clearance in each pipe member 73 is filled with a brazing metal material 33.
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