INSPECTION OF LARGE SOLDER JOINTS The 'LASOL' Project comprises the development, evaluation and
appraisal of a novel automated inspection system specifically designed for large area
solder joints ( i.e. joints greater than 2mm2 in size ). Current inspection
systems are usually optimized for very small joints (e.g. surface mount), based on
grayscale imaging. these systems can check for the existence of a joint, but
information on its condition or quality is inadequate.
The LASOL system uses a non-destructive method based on the light
sectional principle to optically inspect the joints in 3 dimentions. With this method, the
Lasol consortium intends to achieve
-
establishment of generic relations between geometric
structures and quality functions ( e.g. fluid and gas tightness or mechanical
strength )
- 100% testing of industrial production batches
- definition of generic rules for process control using geometric
measurement data
- set-up and validation of an industrial strength pre-competitive
prototype for automated inspection of Large Solder joints
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