Image analysis – Applications – Manufacturing or product inspection
Patent
1994-09-02
1997-01-07
Couso, Jose L.
Image analysis
Applications
Manufacturing or product inspection
382145, 382147, 378 22, 378 62, 437205, 29830, G06K 900
Patent
active
055925626
ABSTRACT:
A method and apparatus for inspecting a bonded joint between components. A cross-sectional image of the joint is analyzed by determining the location of a first characteristic of the joint, the centroid of the joint in the cross-sectional image; and then measuring a second characteristic of the joint in reference to the location of the centroid. This measurement may be used by comparing it with a predetermined specification expected for the measurement for the purpose of determining the quality of the joint. The invention is particularly advantageous for studying cross-sectional X-ray images of solder joints between electronic components and substrata upon which they are mounted and can be implemented for analyzing the images produced in cross-sectional X-ray inspection machines such as scanned beam X-ray laminography systems or digital tomosynthesis systems.
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Couso Jose L.
Do Anh Hong
International Business Machines - Corporation
Schnurmann H. Daniel
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