Process Engineer

Process Engineer

About the Role
Develop and optimize dry and wet etching processes for photonic and semiconductor materials, supporting stable process transfer, equipment capability and new-product introduction.

Key Responsibilities

• Develop and troubleshoot ICP/RIE dry-etch processes for InP, Si and related materials.
• Develop wet-etch processes for specified materials, with precise control of etch rate and lateral undercut.
• Optimize gas chemistry, RF power, chamber pressure and other process parameters to maintain etch rate, selectivity and sidewall-profile stability.
• Use SEM and other characterization tools to measure and analyze sidewall morphology, aspect ratio and selectivity after etching.
• Resolve process-related product anomalies; monitor equipment capability and support routine tool maintenance.
• Prepare etching SOPs, work instructions and inspection reports.
• Partner with R&D teams on process improvements and participate in new product introduction (NPI).

Requirements

• Bachelor’s degree or above in Microelectronics, Semiconductor Physics, Materials Science, Optoelectronics, Condensed Matter Physics or a related discipline.
• Hands-on dry-etch experience with GaAs, InP, Si or related compound-semiconductor materials.
• Proficient in mainstream ICP/RIE equipment, such as Oxford, LAM, STS, NAURA or equivalent.
• Strong understanding of plasma physics, surface-chemistry reaction mechanisms and III-V material etching characteristics.
• Proficient in design of experiments (DOE) and data analysis using JMP, Minitab or equivalent tools.
• Familiar with SEM, AFM, profilometers, ellipsometers and other characterization methods.
• Able to work in a cleanroom environment with rigorous working practices and strong safety awareness.
• Willing to travel or be assigned to external worksites when required.

Location and Work Arrangement
Based in Hong Kong, with assignment to external worksites when required.

Benefits

• Monthly salary of HK$25,000–35,000 depending on experience, with year-end bonus.
• MPF, supplementary commercial insurance and regular health check-ups.
• Five-day work week, paid annual leave, holiday benefits and team-building activities.
• Equity incentive plan for core roles at a startup.