Job Description:

• 1) Tends furnaces that diffuse chemicals into semiconductor wafer surface to alter electrical characteristics of wafer or to protect wafer surfaces: Places semiconductor wafers in containers, such as boat or cassette, using vacuum wand or tweezers.

• 2) Places loaded container on furnace loader, such as conveyor, track, sled, or tube.

• 3) Pushes button to advance wafer containers into furnace or pushes wafer container into furnace tube, using quartz rod.

• 4) Pushes buttons or keys commands on control panel keyboard to activate furnace diffusion cycle.

• 5) Observes gauges and meters to verify that furnace gases and temperature meet specifications.

• 6) Maintains production records.

• 7) Turns dials to adjust furnace gases and temperature, if required.

• 8) May clean semiconductor wafers, using cleaning equipment, to remove contaminants prior to diffusion.

• 9) May test and inspect wafer, using testing equipment, to measure resistivity and thickness.