Electrical circuit apparatus

Details Electrical circuit apparatus Electrical circuit apparatus

1980-12-03

1983-09-20

Kucia, R. R.

Electricity: electrical systems and devices

Miscellaneous

361412, 361414, H05K 114

Patent

active

044059710

ABSTRACT:
Electrical circuit apparatus comprising a mother board having pattern of conductive leads on a surface thereof and including at least one opening therein of predetermined size and shape into which is fitted a daughter board which is structurally distinct from the mother board, the mother and daughter boards being of substantially the same thickness. Electrical circuit components are mounted on the composite board which is formed by the combination of the mother and daughter boards, these electrical circuit components having electrodes which are electrically connected to the pattern of conductive leads of the composite board. Preferably, both the mother and daughter boards are provided with patterns of conductive leads. The leads on the mother and daughter boards are interconnected, either directly or through circuit elements. Also disclosed is a process for manufacturing this composite board.

REFERENCES:
patent: 2495546 (1950-01-01), Posen
patent: 2777039 (1957-01-01), Thias
patent: 3192307 (1965-06-01), Lazar
patent: 3219886 (1965-11-01), Katzin
patent: 3249818 (1966-05-01), Hwang
patent: 3317797 (1967-05-01), Webb
patent: 3480836 (1969-11-01), Aronstein
patent: 3777220 (1973-12-01), Tatsuko
patent: 4120041 (1978-10-01), Hayakawa
patent: 4215387 (1980-07-01), Negishi

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