Residual cleaning of organics at the molecular level on materials such as glass, metals, plastics, polymers or composites prior to bonding, potting, printing, marking, painting or labeling. Plasma de-smear and etch-back of PCB’s allows for the smear left on via walls after drilling to be removed before metallization can occur. In the optical disc mastering industry plasma cleans optical disc stampers, improves replicate release properties, and is used to eliminate certain types of defects on the disk masters.