Etching Process Engineer
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Etching Process Engineer (Wafer Bumping)
Develop, qualify, and maintain wet etch, clean, and stripping processes for semiconductor wafer fabrication and advanced packaging applications. Optimize process parameters to achieve target specifications for critical dimensions, surface cleanliness, and defect performance.
Key responsibilities
- Develop, qualify, and maintain wet etch, clean, and stripping processes for semiconductor wafer fabrication and advanced packaging applications
- Optimize process parameters to achieve target specifications for critical dimensions, surface cleanliness, and defect performance
- Monitor process health through Statistical Process Control (SPC) and implement corrective actions when deviations occur
- Investigate yield excursions, defects, and process abnormalities using root cause analysis methodologies
- Design and execute experiments (DOE) to improve process performance, increase yield, and reduce manufacturing costs
- Collaborate with Equipment, Production, Quality, Product Engineering, and R&D teams to resolve technical issues and support production goals
- Support new product introductions (NPI), process transfers, and technology development activities
- Evaluate and qualify new chemicals, materials, and process technologies
- Prepare and maintain process documentation, including specifications, work instructions, FMEA, control plans, and qualification reports
- Ensure compliance with Environmental, Health, and Safety (EHS) standards, chemical management procedures, and waste disposal regulations
About you
- Degree in Chemical Engineering, Materials Science, Chemistry, Semiconductor Engineering, or a related discipline
- Minimum 2 years of experience in semiconductor manufacturing, preferably in wet etch, cleaning, stripping, plating, or wafer-level packaging processes
- Strong understanding of semiconductor process integration and wet chemical processing
- Knowledge of chemical compatibility, contamination control, and surface preparation techniques
- Experience with DOE, SPC, FMEA, CAPA, and statistical data analysis tools such as JMP or Minitab
- Familiarity with wet process equipment, automated wet benches, and chemical delivery systems
- Strong analytical, troubleshooting, and problem-solving skills
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