Day-to-Day Responsibilities
Set and tune etch recipes, including gas mix, power, pressure and time, for each layer on the wafer.
Monitor etch tools and check that etch depth, profile and uniformity meet the process specification.
Review wafer measurements after etching to catch process drift or defects early.
Investigate yield losses or defects traced to the etch step, working with equipment and quality teams.
Coordinate with photolithography and thin-film teams, since the etch result depends on the pattern and layers made before it.
Support tool maintenance and requalification after repairs or chamber cleans.
Document process changes and follow cleanroom and chemical safety rules.
