Wafer Fab Yield Process Engineer

Company Description

Job Description

The Senior Wafer Fab Yield Engineer is responsible for driving systematic yield improvement across semiconductor wafer fabrication. This position analyzes manufacturing, inline metrology, defect, wafer-level electrical test, and process data to identify yield-loss mechanisms, determine root causes, and lead implementation of sustainable corrective actions.

The engineer serves as a senior technical resource connecting fab process performance to device and product yield. The role works cross-functionally with Process Engineering, Equipment Engineering, Process Integration, Product/Test Engineering, Failure Analysis, Quality, and Manufacturing to improve yield, reduce variability, and accelerate resolution of complex manufacturing problems.

Responsibilities:

• Lead wafer-fab yield improvement initiatives, identifying and prioritizing the dominant yield-loss mechanisms and converting analysis into actionable improvement projects.
• Analyze wafer probe maps, electrical test/bin data, inline metrology, defect inspection data, equipment/process history, and lot genealogy to isolate sources of systematic and random yield loss.
• Perform correlation, regression, statistical analysis, wafer spatial analysis, trend analysis, and other data-mining techniques to identify relationships between process conditions and electrical yield.
• Lead complex root-cause investigations involving process excursions, recurring yield degradation, wafer-level signatures, equipment effects, materials, and process interactions.
• Partner with Process and Equipment Engineering to translate yield signatures into physical process hypotheses and validate corrective actions.
• Define and execute structured experiments and DOE to validate suspected yield drivers and optimize process windows.
• Use SPC and process-capability analysis to identify process variation and opportunities for improved manufacturing control.
• Correlate WAT, wafer sort, inline process-monitoring, defect, and manufacturing data to identify yield improvement opportunities.
• Work with Failure Analysis teams to develop appropriate physical-analysis plans and translate findings into manufacturing actions.
• Develop analyses and engineering reports that clearly communicate yield trends, excursions, root causes, improvement opportunities, and project status.
• Lead cross-functional technical reviews for significant yield excursions and improvement programs.
• Support new-product and/or technology introduction by identifying yield risks, establishing baseline performance, and accelerating learning during manufacturing ramp.
• Mentor less-experienced engineers in statistical analysis, structured problem solving, yield analysis, and fab troubleshooting.
• Identify opportunities to improve fab-wide yield-analysis methods, data infrastructure, and problem-solving practices.

Qualifications

• Bachelor's degree in Electrical Engineering, Applied Physics, or a related technical discipline.
• Significant engineering experience in semiconductor wafer fabrication, preferably involving yield, process integration, process engineering, product engineering, or device engineering.
• Strong understanding of semiconductor wafer fabrication processes and the relationship between process variation, device characteristics, defects, and electrical yield.
• Demonstrated ability to perform statistical analysis and solve complex manufacturing problems using large manufacturing datasets.
• Experience with statistical/data-analysis tools such as JMP, or comparable platforms.
• Working knowledge of SPC, DOE, process capability, correlation/regression, hypothesis testing, and structured root-cause analysis.
• Ability to communicate complex technical conclusions clearly to engineering and manufacturing organizations.
• Demonstrated ability to lead cross-functional technical problem-solving efforts.

Preferred Qualifications

• Master's degree in Electrical Engineering, Applied Physics, or related discipline.
• Experience correlating inline process/defect data → WAT/electrical data → wafer-sort/final yield.
• Experience with wafer-map and spatial-pattern analysis.
• Experience with semiconductor defect inspection and/or physical failure analysis.
• Experience creating automated yield-analysis or data-mining tools.
• Knowledge of semiconductor device physics and electrical test structures.
• Experience supporting technology or product ramps in a high-volume wafer fabrication environment

Due to the nature of this position and the required access to areas where ITAR-controlled articles and/or technical data may be present, candidates must meet the applicable U.S. person requirements for ITAR access. This includes individuals who are:

• A U.S. citizen or U.S. national;
• A lawful permanent resident (Green Card holder); or
• A protected individual as defined by 8 U.S.C. § 1324b(a)(3).

Additional Information

This role is 100% onsite in Palm Bay, FL. 

• Medical, Dental, Vision Insurance from day one.
• 3 weeks of accrued vacation per year
• 13 paid Holidays per year
• Generous 401K plan that includes employer matching up to 6%
• Tuition Reimbursement
• Profit Sharing Bonus

Renesas is an embedded semiconductor solution provider driven by its Purpose, To Make Our Lives Easier. With a global team of over 21,000 engineers and problem solvers in more than 30 countries, we offer the opportunity to work on world‑leading technology for Automotive, Industrial, Infrastructure, and IoT, shaping a safer, healthier, greener, and smarter future.

At Renesas, TAGIE is our culture, grounded in being Transparent, Agile, Global, Innovative, and Entrepreneurial. It shapes how we work, grow and deliver on our purpose together. This collaborative spirit and mindset drive our semiconductor technology to transform industries and impact millions of lives.

We believe in rewarding our employees with a competitive benefits package alongside their salary. More information will be provided during the hiring process.

Are you ready to join our team and shape the future with us?

Renesas Electronics is an equal opportunity and affirmative action employer, committed to supporting diversity and fostering a work environment free of discrimination on the basis of sex, race, religion, national origin, gender, gender identity, gender expression, age, sexual orientation, military status, veteran status, or any other basis protected by law. For more information, please read our Diversity & Inclusion Statement.

Renesas Electronics deals with dual-use technology that is subject to U.S. export controls regulations. Under these regulations it may be necessary for Renesas to obtain U.S. government export license prior to release of technology to certain persons. The decision whether or not to file or pursue an export license application is at the sole discretion of Renesas.