On-chip capacitor

Details On-chip capacitor On-chip capacitor

2005-10-04

2008-03-11

Ha, Nguyen T. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S306100, C361S311000, C361S313000, C361S523000, C361S525000, C361S302000

Reexamination Certificate

active

07342766

ABSTRACT:
An on-chip capacitor having a plurality of capacitor layers. Each capacitor layer includes a pair of frames. A first frame of the pair is electrically connected to first frames on each other capacitor layer and a second frame of the pair is electrically connected to second frames on each other capacitor layer. A plurality of tines project from each frame within the respective capacitor layer. The tines from each frame mesh so as to form an array of sequentially alternating tines from each frame to provide a layer capacitance within the capacitor layer. The multi-layer capacitor further includes a plurality of projections from the tines. The projections extend between frames of adjacent capacitor layers so as to provide an interstitial capacitance between the capacitor layers. The total capacitance of the on-chip capacitor is the sum of each layer capacitance and each interstitial capacitance.

REFERENCES:
patent: 5198967 (1993-03-01), Kuranuki et al.
patent: 6266227 (2001-07-01), Konushi et al.
patent: 6356429 (2002-03-01), Hayashi
patent: 7126809 (2006-10-01), Iioka et al.

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