Senior Application Engineer (Wet Etch)

Key Responsibilities: • Lead technical engagement with customers on wet etchant and cleaning solution performance, integration, and optimization. • Collaborate with R&D to translate customer process needs into chemical formulation improvements and application guidelines. • Evaluate and optimize in-house lab tools to simulate customer process conditions for demo and data correlation. • Lead a laboratory team to plan, prioritize, and complete technical projects supporting customer requests and evaluations. • Deliver detailed technical reports and presentations summarizing experimental results, process recommendations, and application notes. • Identify and troubleshoot process-related issues through root cause analysis and solution-oriented experimentation. • Evaluate, upgrade, and design in-house lab tools to better simulate customer environments and meet technical evaluation needs. Required Qualifications: • Master's degree or above in Chemical Engineering, Materials Science, or a related field. • Minimum 5–7 years of experience in semiconductor wet process applications, ideally in application engineering or process engineering roles. • Familiar with major wet clean tool vendors (e.g., TEL, Screen, LAM) and customer process environments, especially TSMC. • Hands-on experience with wet clean tool recipe tuning, process setup, and optimization on wet bench and/or single wafer tools (e.g., TEL, Screen, LAM). • Experience in DOE design, root cause analysis, and troubleshooting across process and hardware variables. • Skilled in customer engagement, including technical communication, problem-solving, and joint development activities. • Collaborative mindset for working with R&D, product management, and equipment vendors. • Fluent in English writing, reading and speaking • Safety and business ethics - high consciousness is required.