Metal working – Method of mechanical manufacture – Electrical device making
Patent
1988-06-09
1990-05-22
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
29412, 174250, H05K 335
Patent
active
049265466
ABSTRACT:
Disclosed an improved technique for configuring printed circuit board panels containing multiple printed circuit boards. In configuring these printed circuit board panels, the printed circuit board's electrically conductive patterns are symmetrically arranged about a center-line of the panel so that identical printed circuit board patterns are in the same location if the printed circuit board panel is rotated through a 180.degree. angle about the center-line of this symmetry. This symmetry in the printed circuit board panel reduces by one-half the costs of tooling required to fabricate the printed circuit board and also allows components to be placed on both surfaces of the printed circuit board with a single set-up of an automated assembly line.
REFERENCES:
patent: 3597839 (1971-08-01), Jaccodine
patent: 4216523 (1980-08-01), Harford
patent: 4343084 (1982-08-01), Wilmarth
patent: 4551788 (1985-11-01), Daniel et al.
Krueger Brian
Polczynski Mark
A. O. Smith Corporation
Arbes Carl J.
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