Senior/Staff Process Engineer (Wafer Dicing & Back-grind)

Core Responsibilities

1. Responsible for silicon photonic wafer backside grinding/thinning process, laser stealth dicing process and die sorting development for silicon photonic chips, with OSAT or internal line.
2. Optimize wafer thinning thickness, grinding speed, cutting path and laser cutting parameters to avoid chip crack, edge chipping and optical structure damage of silicon photonic wafers.
3. Solve process abnormalities in wafer thinning and dicing processes, including wafer warpage, surface scratch, incomplete cutting and chip breakage.
4. Monitor wafer thickness uniformity, cutting quality and production capacity, carry out continuous process optimization to improve product yield.
5. Evaluate process compatibility between wafer grinding/stealth dicing and bumping & flip-chip processes, optimize process integration to avoid subsequent process failure attributed to front-end process variations.
6. Compile process SOP, ...