Job Description:

• 1) Immerses semiconductor wafers in series of chemical baths to etch circuitry patterns into or to strip excess photoresist from wafer surfaces: Places semiconductor wafers in containers, such as boats or cassettes, using vacuum wand or tweezers.

• 2) Immerses loaded containers in series of chemical and water baths to etch circuitry patterns into or strip excess photoresist from wafer surfaces.

• 3) Places loaded container into air or spin dryer and pushes buttons to activate drying cycle.

• 4) May visually inspect etched and stripped wafer, using microscope, to detect scratches, contaminants, and to verify conformance to specifications.

• 5) May tend plasma etch machine to etch circuitry patterns into wafer surfaces.

• 6) May clean and maintain chemical baths.