A professional who performs any combination of following tasks to clean production photo mask plates used in fabrication of semiconductor devices. Respnsibilities include:

• Reads specifications sheet to verify type of photo mask plate and number of production runs for each plate.
• Marks number of production runs on border of each photo mask plate, using diamond scribe.
• Immerses photo mask plates into series of chemical baths to strip photoresist from photo mask.
• Places photo mask plates in chamber of specified cleaning machine and starts machine that automatically cleans and dries photo mask plates.
• Places photo mask plates in chamber of coating machine and starts machine that automatically deposits specified coating onto photo mask.
• Monitors operation of machines.
• Inspects photo mask plates for defects or insufficient cleaning, using microscope.
• Records process and inspection information in logbook.