Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Reexamination Certificate
2007-12-04
2010-06-22
Ha, Nguyen T (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
C361S306100, C361S306300, C361S303000, C361S311000, C361S313000
Reexamination Certificate
active
07742276
ABSTRACT:
The present invention relates to a wiring structure for reducing the equivalent series inductance (ESL) of a laminated capacitor. The laminated capacitor comprises a number of conductive layers, a power via extending along a thickness direction of the laminated capacitor and arranged to extend from the top conductive layer to the bottom conductive layer, and a ground via extending along the thickness direction of the laminated capacitor and arranged to extend from the top conductive layer to the bottom conductive layer. The conductive layers include a set of first conductive layers and a set of second conductive layers. The power via is electrically coupled to the first conductive layers and the ground via is electrically coupled to the second conductive layers. The laminated capacitor further comprises a supplemental via between the power via and the ground via. The supplemental via is shorter in length than the power via and the ground via. The supplemental via is electrically coupled to one of the first conductive layers and the second conductive layer.
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Hsu Chien-Min
Lai Shinn-Juh
Lee Min-Lin
Wu Shih-Hsien
Finnegan Henderson Farabow Garrett & Dunner LLP
Ha Nguyen T
Industrial Technology Research Institute
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