Electronic circuit board for a timepiece

Details Electronic circuit board for a timepiece Electronic circuit board for a timepiece

1984-09-17

1986-07-01

Kucia, R. R.

Electricity: electrical systems and devices

Miscellaneous

361398, 368 88, 368318, H05K 118

Patent

active

045983372

ABSTRACT:
An electronic circuit board of very thin construction for a wristwatch employs a printed circuit board of insulating material with punched apertures for receiving and locating circuit components, such as capacitors, transistors and integrated circuits, which are of substantially the same thickness as the printed circuit board. A thin metallic conductive backplate is also provided with apertures and with bridging portions supporting the circuit components. Tabs on the backplate or on similar conductive clips for supporting circuit elements may be bent upward and extended through the circuit board apertures for making solder connections to discrete components or to conductive pads on the upper side of the printed circuit board. The backplate includes tabs for other purposes such as holding the backplate to the printed circuit board, making battery connections, providing switch terminals, and retaining the module under spring tension in the case.

REFERENCES:
patent: 3142783 (1964-07-01), Warren
patent: 3266125 (1966-08-01), Tobolski
patent: 3484534 (1969-12-01), Kilby et al.
patent: 3792383 (1974-02-01), Knappenberger
patent: 4064552 (1977-12-01), Angelucci et al.
patent: 4095412 (1978-06-01), Burke
patent: 4144705 (1979-03-01), Iinuma
patent: 4157007 (1979-06-01), Vennard
patent: 4241436 (1980-12-01), Bolzt et al.

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