System for optically inspecting conditions of parts packaged on

Details System for optically inspecting conditions of parts packaged on System for optically inspecting conditions of parts packaged on

1990-09-11

1993-04-06

Rosenberger, Richard A.

Optics: measuring and testing

By configuration comparison

With comparison to master, desired shape, or reference voltage

250235, 250561, G01B 1100, H01J 314, G01N 2186

Patent

active

052007995

ABSTRACT:
A system for inspecting a condition of parts packaged on a printed-circuit board. The inspection system includes a position detecting device to receive scattered light due to illumination of the printed-circuit board with a laser beam and convert the received scattered light into a position signal. This position signal is used for obtaining luminance data and at least two height data of the parts on the printed-circuit board. Proper height data of the parts is determined on the basis of the difference between the two height data. The inspection system determines the package condition by comparing the final height data with a predetermined reference data.

REFERENCES:
patent: 3975102 (1976-08-01), Rosenfeld et al.
patent: 4627734 (1986-12-01), Rioux
patent: 4674869 (1987-06-01), Pryor et al.
patent: 4796997 (1989-01-01), Svetkoff et al.
patent: 4910690 (1990-03-01), Fujita
patent: 4983827 (1991-01-01), Ikegaya et al.
patent: 5004929 (1991-04-01), Kakinoki et al.
patent: 5027418 (1991-06-01), Ikegaya et al.
patent: 5103105 (1992-04-01), Ikegaya et al.
Patent Abstracts of Japan vol. 11, No. 62 (P-551 ) (2509), Feb. 25, 1987 and JP-A-61225606 (Sumitomo Metal) Jul. 10, 1986.

Affiliated with

Also associated with

Rating

System for optically inspecting conditions of parts packaged on does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for optically inspecting conditions of parts packaged on , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for optically inspecting conditions of parts packaged on will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-540222