A professional who sets up and operates computer-controlled epitaxial reactor to grow layer of semiconductor material on wafer surface, following written specifications. Respnsibilities include:

• Removes semiconductor wafers from tray, using vacuum wand, and cleans wafers, using blow-off wand.
• Positions wafers on carousel and aligns carousel on baseplate of reactor.
• Enters processing data into computer to start rotation of baseplate and to activate vacuum pump and epitaxial growth process program.
• Observes display screen to monitor epitaxial growth process.
• Inspects wafers for defects, such as scratches, growths, and pits, and calculates defects per square inch, using calculator.
• Measures thickness and bow (warp) of wafer and thickness and photo-luminescence of epitaxial layer, using gauges and test equipment.
• Calculates surface area of wafer surface, using calculator.
• Inscribes line on wafer, using metal scribe, and breaks off section (light bar sample) of wafer.
• Cuts line on light bar sample to isolate die, using wafer saw, and measures brightness of die, using probe tester.
• Constructs sheet metal housing and installs and repairs electrical wiring, water and gas lines, switches, and gauges on reactor following oral instructions, blueprints, and specifications, using handtools and power tools.
• Checks replacement gas cylinder for leaks before installing on reactor, using leak detector.
• Connects reactor to computer, using handtools and power tools.
• Enters information into computer, using keyboard, to activate program to clean reactor, and cleans and replaces reactor accessories, such as bell jar and carousel.
• Maintains production records.