Wet Process Engineer Semiconductor Wafer Fabrication (Ahmedabad)

Wet Process Engineer Semiconductor Wafer Fabrication Location: Ahmedabad, Gujarat, India Work Mode: Onsite Experience: 6 -15 Years Role Overview We are seeking an experienced Wet Process Engineer to develop, optimize, qualify, and sustain wet chemical processing operations within an advanced semiconductor wafer fabrication facility. This role is responsible for establishing robust wafer cleaning, chemical treatment, surface preparation, oxide removal, and contamination control processes that enable high-yield semiconductor manufacturing and world-class device reliability. The successful candidate will work closely with Lithography, Etch, CMP, Thin Film, Diffusion, Ion Implant, Process Integration, Equipment Engineering, Yield Engineering, Manufacturing, Metrology, Facilities, and Quality teams to optimize wet processes, reduce defects, improve wafer cleanliness, and support technology transfer and production ramp-up. Candidates should possess strong expertise in wet chemistry, wafer cleaning, chemical compatibility, contamination control, defect reduction, process optimization, and Statistical Process Control (SPC). Role Objectives - Develop world-class wafer cleaning and wet chemical processes. - Minimize contamination and particle-related yield losses. - Improve wafer surface quality and process consistency. - Support technology transfer and production ramp. - Deliver repeatable, scalable, and reliable wet processing operations. Key Responsibilities - Develop, optimize, and sustain wet process manufacturing operations for semiconductor wafer fabrication. - Establish process windows for wafer cleaning, oxide removal, surface conditioning, chemical etching, and post-process cleaning. - Optimize RCA cleaning, HF cleaning, SC-1, SC-2, ozone cleaning, sulfuric peroxide cleaning, and solvent cleaning processes. - Develop pre-diffusion, pre-oxidation, pre-deposition, post-etch, post-CMP, and post-implant cleaning methodologies. - Optimize process chemistry, chemical concentration, bath temperature, rinse cycles, and drying parameters. - Reduce contamination from particles, metallic impurities, organics, native oxides, and residues. - Perform Design of Experiments (DOE) to improve process capability and wafer cleanliness. - Analyze particle monitoring data, defect inspection reports, surface characterization, and yield trends. - Collaborate with CMP, Etch, Thin Film, Lithography, and Process Integration teams to optimize upstream and downstream process compatibility. - Support qualification of new cleaning chemistries, process chemicals, and consumables. - Work with Equipment Engineering to improve wet bench performance, chemical delivery systems, and equipment reliability. - Support installation, qualification, and acceptance of wet processing equipment. - Utilize Statistical Process Control (SPC) methodologies to monitor process stability and capability. - Perform root cause analysis for contamination events, process excursions, and yield losses. - Develop engineering specifications, operating procedures, and process documentation. - Participate in technology transfer and New Product Introduction (NPI) activities. - Improve manufacturing yield, cycle time, throughput, and process efficiency. - Ensure compliance with semiconductor quality systems, chemical handling procedures, cleanroom protocols, and EHS regulations. - Drive Lean Manufacturing and continuous improvement initiatives. Key Responsibilities During Fab Startup - Support installation and qualification of wet process equipment. - Develop baseline wafer cleaning recipes for manufacturing. - Establish contamination control methodologies and qualification procedures. - Define chemical process specifications and process control plans. - Qualify cleaning chemicals, DI water systems, filters, and consumables. - Support engineering builds, pilot production, and technology transfer. - Develop manufacturing SOPs and engineering documentation. - Train manufacturing personnel on wet process operations and chemical safety. - Improve process capability before production ramp. - Support high-volume manufacturing readiness. Required Qualifications - Bachelor's or Master's degree in Chemical Engineering, Materials Science, Electronics Engineering, Electrical Engineering, Chemistry, Physics, Semiconductor Engineering, or related discipline. - 6 15 years of semiconductor wafer fabrication experience. - Strong expertise in wet process engineering and semiconductor cleaning technologies. - Experience supporting advanced semiconductor manufacturing. - Proven expertise in process optimization, contamination control, and yield improvement. - Excellent analytical, troubleshooting, and communication skills. Technical Skills Semiconductor Manufacturing - Semiconductor Wafer Fabrication - Front-End Manufacturing (FEOL) - CMOS Process Technology - High Volume Manufacturing (HVM) - Semiconductor Process Development - Technology Transfer - Process Qualification .