... levels within a facility. Using the Contamination Matrix contamination control measures can be targetted in the most effective manner to achieve yield improvements. Many printed circuit board manufacturers process in cleanroom environments to achieve acceptable yield rates,especially for fineline...

... levels within a facility. Using the Contamination Matrix contamination control measures can be targetted in the most effective manner to achieve yield improvements. The Contamination Audit should initially be concentrated on the contamination sensitive processes. These processes are outlined with boxes...