Process-equipment ownership: Lead maintenance support for equipment used in epitaxy, wet and dry etch, thin-film deposition, diffusion and thermal processing, ion implantation, photolithography, wafer cleaning, plating, metrology, inspection, wafer thinning, dicing, and related fab operations. Equipment installations and upgrades: Support tool selection, design reviews, installation, hookup coordination, acceptance testing, commissioning, decommissioning, relocation, and production handoff; ensure maintainability and service requirements are addressed.