Operate photographic equipment.
What does a Semiconductor Wafers Photographic Aligner do?
Operates photographic equipment to align and expose mask circuit pattern with photoresist-coated semiconductor wafer to produce image of circuit pattern on wafer surface: Inserts mask into aligning equipment. Places wafer in wafer holders, such as chuck or conveyor, using tweezers or vacuum wand, to load aligning equipment. Presses buttons to position wafers underneath microscope and aligning head. Observes wafer through microscope and turns knobs to align mask with index points on wafer. Presses button to activate wafer exposing cycle. Maintains production records.