Electric circuit assembly comprising a printed wiring board

Details Electric circuit assembly comprising a printed wiring board Electric circuit assembly comprising a printed wiring board

1983-05-27

1985-11-19

Kucia, R. R.

Electricity: electrical systems and devices

Miscellaneous

174138G, 339 17R, 331108R, 361404, 361408, H05K 118

Patent

active

045546142

ABSTRACT:
A supporting plate having a network of conductors, on which supporting plate a number of circuit components are placed which are interconnected in the network of conductors in an electric circuit. In a place of the circuit which is sensitive to moisture, a board opening is provided in which a member of a minimum moisture-absorbing material is fitted. The connections of the surrounding circuit components extend in an aperture of the member and are electrically interconnected there. The stability of the circuit is considerably improved thereby in particular in the case in which the circuit is an oscillator circuit.

REFERENCES:
patent: 2019625 (1935-11-01), O'Brien
patent: 2148201 (1939-02-01), Houwink
patent: 2547022 (1951-04-01), Leno
patent: 3366914 (1968-01-01), McManus
patent: 3366920 (1968-01-01), Laudig et al.
patent: 3517272 (1970-06-01), Lee et al.
patent: 3648114 (1972-03-01), Manuali et al.
patent: 3663866 (1972-05-01), Iosue et al.
patent: 3971610 (1976-07-01), Buchoff et al.
patent: 4405971 (1983-09-01), Ohsawa
patent: 4460227 (1984-07-01), Ball

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