Defectivity Control Engineer

STMicroelectronics; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

STMicroelectronics is seeking a Defectivity Line Control Engineer to monitor defectivity in wafer fabrication and drive improvements for stable process performance and product quality. The role involves analyzing defect data, reducing out-of-control conditions, and leading cross-functional troubleshooting with process, equipment, and production teams.

The candidate will also contribute to technology transfer and industrialization, and will set up and maintain Defectivity Systems, including

Qualifications

• Strong analytical and problem-solving skills.
• Good understanding of semiconductor wafer fab processes.
• Ability to work across departments and communicate clearly.
• Proactive mindset with strong ownership and teamwork.
• Self-driven and independent with an inquisitive mind.
• Familiar with SPC concept and other problem-solving tools: SPACE, FMEA, 8D, Data mining analysis and AI base on Convolution Neural Network (CNN) will be advantageous.

Responsibilities

• Analyze defect Pareto, defect maps, and characterization data to identify root causes and containment actions.
• Drive tool OOC reduction and lead sporadic defect reduction activities.
• Lead the troubleshooting of defectivity alert and involve in Material Review Board for material assessment and disposition.
• Support troubleshooting of defectivity alerts and escalation of critical issues.
• Work closely with process, equipment, device, quality, and production teams to drive defect reduction and line stability.
• Support technology transfer and industrialization activities to ensure smooth deployment of new products and processes.
• Responsible for setting up, optimizing, maintaining Process Defectivity Systems like Automation system (Auto defect sampling, Auto DOI, DOLI), Defect library.
• Opportunity to involve in deployment of Advanced Defectivity Monitoring system involving AI, Convolution Neural Network (CNN) and deep learning with DIT team and opportunities to learn and apply data analytics.

Job description

OUR STORY

At STMicroelectronics, we believe in the power of technology to drive innovation and make a positive impact on people, businesses, and society. As a global semiconductor company, our advanced technologies and chips form the hidden foundation of the world we live in today.

When you join ST, you will be part of a global business with more than 122 nationalities, present in 40 countries, and comprising over 49,000 diverse and dedicated creators and makers of technology around the world.

Developing technologies takes more than talent: it takes amazing people who understand collaboration and respect. People with passion and the desire to disrupt the status quo, drive innovation, and unlock their own potential.

Embark on a journey with us, where you can innovate for a future that we want to make smarter and greener, in a responsible and sustainable way. Our technology starts with you.

Job Summary

The Defectivity Line Control Engineer is responsible for controlling defectivity in semiconductor wafer fabrication through daily line monitoring, OOC management, tool excursion response, and cross-functional problem solving. The role supports both routine operations and improvement activities to ensure stable process performance, product quality, and effective industrialization.

Key Responsibilities

• Analyze defect Pareto, defect maps, and characterization data to identify root causes and containment actions.
• Drive tool OOC reduction and lead sporadic defect reduction activities.
• Lead the troubleshooting of defectivity alert and involve in Material Review Board for material assessment and disposition.
• Support troubleshooting of defectivity alerts and escalation of critical issues.
• Work closely with process, equipment, device, quality, and production teams to drive defect reduction and line stability.
• Support technology transfer and industrialization activities to ensure smooth deployment of new products and processes.
• Responsible for setting up, optimizing, maintaining Process Defectivity Systems like Automation system (Auto defect sampling, Auto DOI, DOLI), Defect library.
• Opportunity to involve in deployment of Advanced Defectivity Monitoring system involving AI, Convolution Neural Network (CNN) and deep learning with DIT team and opportunities to learn and apply data analytics.

Skills and Competencies

• Degree in Material Science/Electrical/Electronics/Microelectronics/Mechanical/Physics/Chemistry.
• Preferred minimum 3 years working experience in semiconductor wafer fabrication industry and good knowledge in Defectivity methodology and knowledge of Defectivity inspection tool. Fresh graduate is welcomed to apply as well.
• Knowledge in Klarity Defects/AceXP/Space/Spotfire and other Defectivity related tool will be an added advantage.
• Strong analytical and problem-solving skills.
• Good understanding of semiconductor wafer fab processes.
• Ability to work across departments and communicate clearly.
• Proactive mindset with strong ownership and teamwork.
• Self-driven and independent with an inquisitive mind.
• Familiar with SPC concept and other problem-solving tools: SPACE, FMEA, 8D, Data mining analysis and AI base on Convolution Neural Network (CNN) will be advantageous.

ST is proud to be one of the 17 companies certified as a 2026 Global Top Employer and the first and only semiconductor company to achieve this distinction. ST was recognized in this ranking thanks to its continuous improvement approach and stands out particularly in the areas of ethics & integrity, purpose & values, organization & change, business strategy, and performance.

At ST, we endeavor to foster a diverse and inclusive workplace, and we do not tolerate discrimination. We aim to recruit and retain a diverse workforce that reflects the societies around us. We strive for equity in career development, career opportunities, and equal remuneration. We encourage candidates who may not meet every single requirement to apply, as we appreciate diverse perspectives and provide opportunities for growth and learning. Diversity, equity, and inclusion (DEI) is woven into our company culture.

To discover more, visit st.com/careers.