Method and apparatus for observing wiring patterns of printed ci

Details Method and apparatus for observing wiring patterns of printed ci Method and apparatus for observing wiring patterns of printed ci

1996-02-06

1998-05-12

Tokar, Michael J.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503411, H05K 1000

Patent

active

057509972

ABSTRACT:
A method for observing wiring patterns of a printed circuit board includes the steps of projecting light having a wave length within an infrared range on the printed circuit board, detecting reflected light from the printed circuit board, and forming an image based on the reflected light, so that the wiring patterns of the printed circuit board is observed through the image.

REFERENCES:
Leah et al Certainty of Measurement Using an Automated IR laser Insection Instrument for PCB Solder Joint Integrity. J. Phys.E: Sci. Instrum. vol. 18, 1985, p. 676.

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