Semi-Conductor
Santa Clara, Ca, Us
1) Maintain processing, production, and inspection information and reports.2) Align photo mask pattern on photoresist layer, expose pattern to ultraviolet light, and develop pattern, using specialized equipment.3) Attach ampoule to diffusion pump to remove air from ampoule, and seal ampoule, using blowtorch.4) Calculate etching time based on thickness of material to be removed from wafers or crystals.5) Clean semiconductor wafers using cleaning equipment, such as chemical baths, automatic wafer cleaners, or blow-off wands.6) Etch, lap, polish, or grind wafers or ingots to form circuitry and change conductive properties, using etching, lapping, polishing, or grinding equipment.10) Manipulate valves, switches, and buttons, or key commands into control panels to start semiconductor processing cycles.7) Measure and weigh amounts of crystal growing materials, mix and grind materials, load materials into container, and monitor processing procedures to help identify crystal growing problems.8) Monitor operation and adjust controls of processing machines and equipment to produce compositions with specific electronic properties, using computer terminals.9) Mount crystal ingots or wafers on blocks or plastic laminate, using special mounting devices, to facilitate their positioning in the holding fixtures of sawing, drilling, grinding or sanding equipment.10) Operate saw to cut remelt into sections of specified size or to cut ingots into wafers.11) Place semiconductor wafers in processing containers or equipment holders, using vacuum wand or tweezers.