Senior Yield & Device Performance Engineer

COHERENT; Sherman (TX); On-site; USD 107,000 - 134,000; Full time

Job summary

Coherent Corp. in Sherman, Texas is seeking a PhD‑level yield engineer to own yield, variability, and device performance across all manufacturing stages.

You will lead deep technical investigations into yield limiters related to epitaxy, reactor parameters, and device integration, and develop physics‑based hypotheses tested by DOE and statistical analysis. You will drive yield recovery, build predictive models, and serve as the primary technical interface with customers and internal teams,

Qualifications

• PhD or equivalent with strong semiconductor physics focus.
• 5+ years in semiconductor device or yield engineering in high-volume manufacturing.
• Experience leading technical investigations and delivering yield improvements.
• Experience in compound semiconductor or optoelectronic device manufacturing preferred.

Responsibilities

• Own yield, variability, and device performance across manufacturing stages for assigned products.
• Lead deep technical investigations into yield limiters spanning epitaxy, wafer processing, device architecture, inspection, and test systems.
• Develop physics-based hypotheses and validate via DOE, statistics, and experiments.
• Drive yield recovery plans from issue to verified improvement.
• Act as central technical authority for product behavior across teams and customers.

Skills

SQL

Python

R

JMP

DOE methods

Statistical modeling

Data visualization

Education

PhD in Electrical Engineering/Applied Physics/Materials Science

Master or BEng in related field

Tools

Epitaxy tools

SPC

Job description

Coherent Corp. in Sherman, Texas is seeking a PhD‑level yield engineer to own yield, variability, and device performance across all manufacturing stages.

You will lead deep technical investigations into yield limiters related to epitaxy, reactor parameters, and device integration, and develop physics‑based hypotheses tested by DOE and statistical analysis. You will drive yield recovery, build predictive models, and serve as the primary technical interface with customers and internal teams,