Capacitor-containing wiring board and method of manufacturing th

Details Capacitor-containing wiring board and method of manufacturing th Capacitor-containing wiring board and method of manufacturing th

1991-11-21

1992-12-15

Griffin, Donald

Electricity: electrical systems and devices

Miscellaneous

174 72B, H01B 500, H05K 118

Patent

active

051723042

ABSTRACT:
A flat capacitor-containing wiring board, which can be arranged optionally in the interior of a multilayer substrate. This capacitor-containing wiring board has a dielectric substrate which is made of a mixture of dielectric powder and resin, and conductors which are provided on both major surfaces of the dielectric substrate. The conductors can be etched and shaped so as to form capacitors which use the interior of the wiring board as their dielectric layers. With this wiring board, it is possible to etch the conductors so that the values of the capacitors can be freely selected over a wide range, the wiring board is flexible to some extent, and no pinholes or defects are defined over a wide area. Preferably, the board has a greater relative resin content near its surfaces than in its interior, which improves the dielectric characteristics of the board. The increased resin content may be provided by resin adhesive layers on the surfaces which permeate the board to some extent.

REFERENCES:
patent: 4382156 (1983-05-01), Jodoin
patent: 4636908 (1987-01-01), Yoshihara et al.
patent: 4862323 (1989-08-01), Butt
patent: 4882651 (1989-11-01), Maher
patent: 4996097 (1991-02-01), Fischer
patent: 5038132 (1991-08-01), Lindblom et al.

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