Senior Device Yield Engineer — Process Optimization

STMicroelectronics Asia Pacific Pte Ltd; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

STMicroelectronics Asia Pacific Pte Ltd in Singapore seeks a process engineer to monitor EWS test yield, analyze PT/EWS scrap, and support MRB and tool qualification activities. You will collaborate with multiple teams to drive containment, corrective actions, and process improvements.

The role requires a degree in engineering and 2+ years in semiconductor manufacturing, with strong statistics knowledge and English proficiency.

Qualifications

• Degree in Engineering or a related discipline.
• Minimum 2 years of experience in semiconductor manufacturing, yield improvement, process engineering, or a related field.
• Good understanding of semiconductor manufacturing.
• Familiarity with bench analyzer operation.
• Basic knowledge of statistics.
• Strong team collaboration skills.
• Proficiency in Microsoft Office tools.
• Experience with Ace-Xp, JMP, or Spotfire is an advantage.
• Strong command of English, both written and spoken.

Responsibilities

• Monitor and improve Electrical Wafer Sort (EWS) test yield loss for the assigned technology.
• Analyze and reduce Parametric Testing (PT) and EWS scrap through root cause identification and implementation of containment, corrective, and preventive actions.
• Manage lots on hold, including inline, T84, and EWS lots, and ensure daily disposition follow-up.
• Support MQA and Division teams in MRB activities and timely NCL disposition.
• Assist Process and Module Engineers with electrical data analysis for new tool qualification and production ramp-up.
• Drive process change qualification when product or process marginality is identified.
• Work with Product Engineers to optimize sort test programs, specification limits, and statistical bin limits where applicable.
• Collaborate with Process Engineers and Division teams to improve inline and PT CPK.
• Support sending plant, Division, RAT, Process Engineers, and Production Control teams in techno and new product transfer qualifications.
• Apply failure analysis knowledge and perform bench measurements to support root cause analysis.
• Support defectivity reduction initiatives and Customer Quality Assurance activities for customer incident analysis.
• Lead ad hoc improvement projects related to yield enhancement, scrap reduction, defectivity reduction, process robustness, process simplification, lot hold improvement, and cost reduction.
• Liaise with professionals from other functions and ST sites to support team requirements and collaboration.

Skills

Semiconductor manufacturing

Statistics

Bench analyzer operation

Team collaboration

Microsoft Office

Education

Bachelor's degree in Engineering

Tools

Ace-Xp

JMP

Spotfire

Microsoft Office

Job description

STMicroelectronics Asia Pacific Pte Ltd in Singapore seeks a process engineer to monitor EWS test yield, analyze PT/EWS scrap, and support MRB and tool qualification activities. You will collaborate with multiple teams to drive containment, corrective actions, and process improvements.

The role requires a degree in engineering and 2+ years in semiconductor manufacturing, with strong statistics knowledge and English proficiency.