Integrated decoupling capacitive core for a printed circuit boar

Details Integrated decoupling capacitive core for a printed circuit boar Integrated decoupling capacitive core for a printed circuit boar

1994-10-07

1995-11-21

Kincaid, Kristine L.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361762, 361763, 361311, 29 2542, H01G 4018

Patent

active

054693241

ABSTRACT:
A printed circuit board includes a planar first outer layer, a planar second outer layer, and a planar capacitive power distribution core disposed between the first and second outer layers. The capacitive core is formed from first and second electrically conductive layers with a dielectric layer disposed therebetween. The dielectric layer is made from a high dielectric constant material such as a ceramic in the form of a perforated sheet. The perforations permit the electrically conductive layers to be bound to the dielectric layer without significantly increasing the separation between the conductive layers. Each perforation allows a column of adhesive to collect therein to bond the power distribution core together. The resulting capacitance is typically sufficient to eliminate the need for decoupling capacitors.

REFERENCES:
patent: 4295183 (1981-10-01), Miersch et al.
patent: 4682414 (1987-07-01), Butt
patent: 4755911 (1988-07-01), Suzuki
patent: 5010641 (1991-04-01), Sisler
patent: 5162977 (1992-11-01), Paurus et al.

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