Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1997-07-23
2000-09-05
Gaffin, Jeffrey
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
174250, 2940701, 294071, H05K 103
Patent
active
06114634&
ABSTRACT:
A circuit board (110) has a layer window (100) through which images (120-170) on transparent layers can be seen. An inspector of the board can determine if the layers have been placed properly if the images (120-170) are in a unidirectional step formation away from the outer layer. The visual inspection is further enhanced by forming the images with overlapping curvatures (180) at their ends.
REFERENCES:
patent: 3272909 (1966-09-01), Bruck et al.
patent: 5093183 (1992-03-01), Strunka
patent: 5266380 (1993-11-01), Renguso et al.
Bose Romi N.
Cuneo Kamand
Gaffin Jeffrey
Hughes Terri S.
Motorola Inc.
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