2 Articles found
Photo Emission Tech., Inc. (PET) Articles
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A Noncontacting Scanning Photoelectron Emission Technique for Bonding Surface Cleanliness Inspection
Molecular contamination of bonding surfaces can drastically effect the bond strength. This in turn effects the structural integrity that can be achieved. The presence of thin contaminant films on bonding surfaces can result from inadequate or ...
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Copper foil characterization and Cleanliness testing
During implementation of SPC concepts in circuit inner layer manufacturing, it was noted that variations in copper foil characteristics can contribute to variations in process control and quality. Two critical characteristics were identified: (1) ...