AOI, X-ray, functional testing is typical inline testing and inspection equipment. They allow nearly complete monitoring of the production process based on pre-programmed decision thresholds. However one thing is still done manually, the qualification and improvement of the production process.
This article presents an approach to comprehensive process qualification given the improvement potential in today‘s inspection environment.
Qualification depends on the ability to detect sources of faults, to register the totality of all possible faults, and to assess the effects of these faults. Process qualification largely employs manual inspection mechanisms – generally the microscope.
The reliability of process qualification then crucially depends on the:
- Available inspection equipment
- Inspector‘s experience.
Both variables affect the reliability of process qualification and hence the quality of the process and the products.