Electricity: electrical systems and devices – Electrolytic systems or devices – Solid electrolytic capacitor
Reexamination Certificate
2005-12-01
2010-06-01
Ha, Nguyen T (Department: 2831)
Electricity: electrical systems and devices
Electrolytic systems or devices
Solid electrolytic capacitor
C361S525000, C361S528000, C361S529000, C361S516000, C361S519000
Reexamination Certificate
active
07729102
ABSTRACT:
A solid electrolytic capacitor1includes a capacitor element2and a resin package9enclosing the capacitor element. The capacitor element includes a sintered body3of valve metal powder, an anode4aprovided by embedding an anode wire4in the sintered body, and a cathode5provided by forming a metal layer on the sintered body. A first lead member6in the form of a plate is connected to the anode wire4. The end of the first lead member projects from a side surface9aof the resin package9to provide an anode terminal T1. A second lead member7in the form of a plate is connected to the cathode5. The end of the second lead member projects from a side surface9bof the resin package9to provide a cathode terminal T2. By extending the first and the second lead members6and7generally horizontally at the substantially same height from the lower end of the resin package and making the portions projecting from the resin package9serve as the anode terminal T1and the cathode terminal T2, the lead length between the anode4aof the capacitor element2and the anode terminal T1and the lead length between the cathode5and the cathode terminal T2is made as short as possible, whereby ESL is reduced.
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Ha Nguyen T
Hamre Schumann Mueller & Larson P.C.
Rohm & Co., Ltd.
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