Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate
2007-08-14
2007-08-14
Nguyen, Ha Tran (Department: 2829)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
C382S145000
Reexamination Certificate
active
11553428
ABSTRACT:
A method and apparatus allows adapting a standard flying prober system to manually or automatically determine the likelihood of error free probability of test point targets on Printed Circuit Assemblies (PCA's) which may have significant planarity irregularities. The method and apparatus provides a corrective function allowing error free probing of test target points on PCA's having planarity irregularities which otherwise make them impractical to test. The method and apparatus involves utilizing the camera system typically provided with a flying prober system and an auxiliary sighting system each having different optical axis angles, the use of which allows determination of height values.
REFERENCES:
patent: 6084663 (2000-07-01), Seng
patent: 6307389 (2001-10-01), Buks et al.
patent: 6677773 (2004-01-01), Prokopp
Driscoll Faith F.
Von Benken Christopher J
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