Senior Wafer Process Engineer

Role & responsibilities

Monitor and control Diamond Wire Slicing processes to ensure consistent production of silicon wafers meeting thickness, TTV, bow, warp, and surface quality specifications.

• Analyze process performance data and identify opportunities for yield improvement, productivity enhancement, wire consumption reduction, and cost optimization.
• Support process optimization initiatives through experimentation, data analysis, and implementation of process improvements.
• Investigate and troubleshoot process abnormalities such as wafer breakage, wire marks, thickness variation, edge chipping, excessive kerf loss, and equipment-related issues.
• Collaborate with Production, Quality, Maintenance, and R&D teams to resolve process challenges and implement new technologies or process upgrades.
• Monitor key process parameters including wire speed, feed rate, tension, coolant/slurry parameters, slicing time, and consumable usage to ensure process stability.
• Conduct root cause analysis (RCA) and implement corrective and preventive actions (CAPA) for process deviations and quality issues.
• Develop, update, and maintain process documentation, including SOPs, Work Instructions, Control Plans, Process Flow Diagrams, and troubleshooting guides.

Support process validation, qualification, and trial activities for new equipment, consumables, wire specifications, and process changes.•  Participate in continuous improvement projects focused on wafer quality improvement, cycle time reduction, OEE improvement, and manufacturing cost reduction.

• Monitor and improve process capability (Cp/Cpk) through Statistical Process Control (SPC) and data-driven process management.
• Ensure compliance with safety, environmental, quality, and operational standards in all slicing activities.
• Work closely with equipment engineers and maintenance teams to improve equipment reliability, uptime, and preventive maintenance effectiveness.
• Support operator training and skill development by providing technical guidance and process-related coaching.
• Prepare technical reports and present process performance metrics including yield, productivity, quality trends, consumable consumption, and improvement project results.

Key Skills and Competencies:

• Excellent communication and interpersonal skills

• Microsoft Office, Minitab

• ISO 9001, 14001, 45001, 50001

               Six Sigma, QC Tools, Kaizen, Statistical Process Control, TQM (added advantage)

Qualifications:

• B.E./ B.Tech Mechanical

Required Technical Experience

• Design, implement and optimise industrial processes in the manufacturing setup. A good understanding of materials such as diamond wire and diamond tool and mechanics such as fluid movement and automation to manufacture silicon wafer for semi-conductor or solar applications preferred. Ability to do data analysis using engineering statistical methods preferred.