WANJU LI

Managed technical support and sales for industrial valves, pneumatic/electric control components, and piping systems across Steel, Chemical, and Semiconductor sectors.

• Process Optimization & Solution Engineering: Leveraged deep expertise in process control equipment, media characteristics, and piping configurations to design and implement tailored solutions that stabilized challenging operating conditions.
• On-site Diagnostic & Root Cause Analysis: Conducted rigorous on-site inspections of equipment and piping systems, performing failure analysis, flow diagnostics, and mechanical checks to identify and resolve operational anomalies.
• Technical Translation & Communication: Translated complex field issues and usage scenarios into actionable technical data, facilitating seamless coordination between Engineering, Maintenance, and Operations departments.
• Cross-Functional Issue Resolution: Led troubleshooting efforts by aligning multi-departmental resources, ensuring rapid problem elimination and long-term preventive measures under high-pressure environments.
• Client Relationship Management: Enhanced customer satisfaction by providing precise demand analysis and strategic technical consulting, optimizing equipment reliability and operational uptime.

• Oversee mass production stability and equipment uptime for high-volume manufacturing, specializing in Lam Research (Kiyo/ EX/ FX series), TEL (Tactras Vesta NV/NV4）, and AMAT （MESA/ Centris Sym3） etch platforms. Served as the primary owner for critical etch layers.
• Yield & Productivity Optimization: Led multiple cross-functional projects focused on defect reduction and throughput enhancement, consistently maintaining high yield rates and production efficiency through rigorous real-time anomaly troubleshooting.
• New Product Introduction (NPI): Actively participated in the pilot run and integration of next-generation nodes and innovative etching processes, ensuring a seamless transition from R&D to mass production.
• RMS & System Integration: Appointed as RMS (Recipe Management System) Specialist, responsible for the architecture and maintenance of new sub-systems. Driven factory-wide integration of process parameter optimization solutions.
• Advanced Process Control (APC): Proficient in SPC, FDC, and R2R control methodologies. Successfully implemented customized process adjustments and optimizations based on real-time data feedback to minimize process variance.
• AI-Driven Innovation (Smart Manufacturing): Identified critical blind spots in the existing TDAS system. Collaborated with AI teams to design an Automated Early Warning System by integrating FDC and SPC modules, enabling proactive detection of equipment and process parameter drifts.
• Capacity Planning: Executed strategic capacity expansion and bottleneck removal projects, optimizing tool layout and workflow to meet aggressive production targets.

• Early Exposure to Semiconductor Manufacturing: Developed a professional foundation within a leading-edge cleanroom environment, mastering standardized protocols and high-tech manufacturing workflows.
• Automated Inspection Equipment (AOI/AMI): Gained hands-on experience in operating and calibrating automated inspection systems (AOI - Automated Optical Inspection, AMI). Assisted in fine-tuning equipment to ensure high-precision defect detection.
• Defect Metrology & Quality Control: Performed wafer-level defect inspections and quality assurance tasks. Developed a keen eye for identifying process anomalies and material deviations at an early stage.
• Environmental Monitoring: Conducted routine cleanroom environmental monitoring (e.g., particle count, humidity, temperature) to ensure compliance with strict fabrication standards.
• Collaborative Problem Solving: Proactively supported senior engineers in cross-functional projects; recognized for a strong sense of responsibility and the ability to enhance team productivity through meticulous documentation and effective communication.