鄭英民

Global Supplier Quality & Business Governance professional with 18+ years of experience across semiconductor materials, electronics manufacturing, and high-volume production environments. Experienced in supplier quality governance, advanced material qualification, customer quality management, and cross-functional manufacturing leadership across Asia, the US, Europe, and Japan. Demonstrated success in driving measurable business impact, including 59% warranty reduction, semiconductor manufacturing yield improvement (50% to 90%), and supplier risk mitigation through structured quality systems and process governance.

Senior Quality & Materials Analysis Engineer / Global Supplier Quality Lead at KATUN CORPORATION (2020-11 – Present)

• Global Supplier Governance: Directed end-to-end quality governance for a high-complexity portfolio of 6,400+ SKUs, managing 60–70 Tier-1 global suppliers throughout Asia, the US, Europe, and Japan.
• Executive Presence: Delivered strategic monthly business reviews (MBR) and high-stakes quality performance updates directly to the Vice President in English.
• Business Impact: Led cross-functional RCA/CAPA task forces that slashed global warranty claims by 59% (0.22% → 0.09%), achieving significant reduction in after-sales operational costs.
• Advanced Material Engineering: Led material characterization and chemical/physical property analysis against OEM reference standards to ensure material stability and functional equivalency.
• Proactive Quality Systems: Institutionalized strict 1st Lot qualifications and LoSEP (Lot Stability Evaluation Program) trends to proactively detect supplier process drifts and eliminate quality escapes.
• Strategic Risk Management: Implemented risk-based supplier management using 80/20 governance principles to optimize corporate audit resource allocation and maximize supplier compliance oversight.

CVD Process Leader & Concurrent Quality Systems Lead at PETC (Bao-De Electro-Ceramic Materials / Semiconductor Materials) (2018-01 – 2020-04)

• Concurrent Quality Systems Lead (Nov 2019 – Apr 2020): Appointed to lead corporate quality transformation; streamlined IMS to ISO 9001/14001/45001 certification.
• Automotive Standards Readiness: Led IATF 16949 readiness through cross-functional alignment and gap analysis.
• Laboratory Governance: Established ISO 17025–aligned lab governance ensuring audit readiness and data integrity.
• CVD Process Leader (Jan 2018 – Nov 2019): Plant Setup & Mass Production: Led the end-to-end engineering setup, equipment installation, and chemical vapor deposition (CVD) process qualification for a high-precision semiconductor material manufacturing plant, achieving mass production readiness within 1.5 years.
• Yield Optimization: Spearheaded CVD process optimization initiatives that successfully drove manufacturing production yield from 50% to 90%.
• Customer Acquisition: Secured official material qualification approval from Tier-1 global semiconductor customers, unlocking new business scalability.
• Led a cross-functional team of 10 technicians and 5 engineers during semiconductor material production ramp-up and process stabilization initiatives.

Principal Engineer (Supplier Quality & Process Development) at MOTECH INDUSTRIES (2011-10 – 2017-05)

• Principal Engineer | Supplier Quality & Material Validation (Oct 2012 – May 2017): Supplier Governance & IQC: Managed incoming quality control (IQC) operations and conducted supplier quality audits within automated, high-volume manufacturing environments.
• Corrective Action Leadership: Led structured supplier corrective action requests (SCAR) and reviewed 8D reports to drive continuous supplier improvement and process stability.
• Change & Risk Management: Commanded cross-functional TECN/ECN reviews for engineering changes, new material validation, and manufacturing risk assessment to prevent operational escapes.
• Metrology Governance: Managed plant-wide metrology calibration and MSA/Gauge R&R activities to ensure high data reliability and statistical process control.
• Principal Engineer | Crystal Growth Process Development (Oct 2011 – Oct 2012): Process Parameter Optimization: Developed crystal growth process parameters to improve wafer conversion efficiency and overall manufacturing performance.
• Yield & Efficiency Enhancement: Led high-efficiency wafer development initiatives through process optimization, shortening squaring/crystal cutting cycle times, and enhancing material performance.
• Cost Leadership & Control: Spearheaded ingot process innovation that significantly reduced slurry and SiC consumption rates, directly lowering operational manufacturing costs.

Process & Manufacturing Supervisor at EVERSOL ENERGY (2010-04 – 2011-10)

• Process Verification: Verified crystal growth manufacturing processes using simulation tools to optimize production performance and operational efficiency.
• Supply Chain Continuity: Evaluated and qualified alternative SiC material suppliers to reduce single-source dependency and strengthen supply chain resilience.

Process Engineer at AU OPTRONICS (AUO) (2007-04 – 2010-04)

• Cost Optimization: Evaluated and qualified second-source consumables to optimize manufacturing costs while maintaining automated fab quality standards.
• Risk Mitigation: Utilized PFMEA methodologies and equipment uptime analysis to improve operational stability within high-volume manufacturing environments.
• CMP Process Optimization: Controlled RGB-stage CMP processes, optimizing slurry and pad parameters to minimize roughness and enhance display contrast ratio

Master of Science in Civil Engineering – National Chung Hsing University

Bachelor of Science in Hydraulic Engineering – Feng Chia University