Improving X-ray inspection of printed circuit boards by integration of neural network classifiers
- 1 January 1993
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
In order to achieve six sigma quality for PCB-production x-ray inspection of solder joints is a powerful method to assure a high standard in fabrication. Current x-ray inspection systems require CAD files and intensive manual fine tuning. Neural network classifiers are able to adapt inspection tasks by presentation of typical training patterns. In this work neural networks are integrated into a x-ray inspection system both to increase defect recognition accuracy as well as to minimize manual adjustments of the system. The experiments carried out on different SMT device types (QFP, TAB, PLCC) prove the capability of neural network based approaches to correctly segment objects (solder joints etc.) and to detect defects (solder voids etc.)Keywords
This publication has 2 references indexed in Scilit:
- Automated 3D X-ray Inspection Of Fine Pitch PCB'sPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1992
- Fast detection and classification of defects on treated metal surfaces using a backpropagation neural networkPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1991