Title :
Optical testing of printed circuit boards
Author :
Tremblay, G. ; Meyrueix, P. ; Peuzin, J.C.
Author_Institution :
Schlumberger Montrouge Res., France
Abstract :
An optical technique is described to test large printed circuit boards (PCBs) supporting surface-mounted components. This testing process is based on the change of the light polarization inside an electrooptic material plate. An anisotropic elastomer conductor particular to each type of PCB connects it to the electrooptical material. In a few seconds, high-frequency (100-MHz) signals with a spatial resolution of 1/1000-in. may be tested
Keywords :
light polarisation; optical testing; printed circuit testing; surface mount technology; 100 MHz; PCB testing; anisotropic elastomer conductor; electrooptic material plate; electrooptical material; light polarization; printed circuit boards; surface-mounted components; Anisotropic magnetoresistance; Circuit testing; Conducting materials; Geometrical optics; Materials testing; Optical devices; Optical materials; Optical polarization; Printed circuits; Spatial resolution;
Conference_Titel :
Test Conference, 1988. Proceedings. New Frontiers in Testing, International
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-0870-6
DOI :
10.1109/TEST.1988.207854
