Senior Product & Yield Device Engineer

Primary Responsibilities

Product-Level Technical Ownership

Own yield, variability, and device performance across all manufacturing stages for assigned products.

Lead deep technical investigations into complex yield limiters involving epitaxy, wafer processing, device architecture, inspection, and test systems.

Develop physics-based hypotheses and validate them through structured DOE, statistical modeling, and experimental execution.

Drive yield recovery plans from problem identification through verified improvement.

Serve as the central technical authority for product behavior across internal teams and external customers.

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Epitaxy & Reactor Expertise

Leverage strong understanding of compound semiconductor epitaxy and epi reactor fundamentals.

Understand critical growth parameters including temperature uniformity, V/III ratio, precursor chemistry, chamber pressure, dopant incorporation, thickness control, strain management, and defect formation mechanisms.

Correlate epitaxial variation to downstream optical and electrical device performance.

Partner with Epitaxy Engineering to reduce wafer-to-wafer and run-to-run variability.

Translate device-level failures into actionable feedback for reactor and process optimization.

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Advanced Data Analytics & Modeling

Perform deep dives into large-scale manufacturing datasets using SQL, JMP, Python, or equivalent tools.

Develop multivariate statistical models to isolate root causes of yield loss.

Apply regression analysis, variance decomposition, SPC, and DOE methodology.

Build predictive models for early detection of yield excursions.

Develop automated data analysis workflows to accelerate technical learning cycles.

Translate raw data into defensible, physics-based conclusions.

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Wafer Process & Device Integration

Analyze interactions between epitaxy, lithography, etch, deposition, metallization, inspection (AVI), and electrical/optical test steps.

Identify how upstream variability propagates into final device performance.

Provide Design-for-Manufacturability (DFM) input during new product development.

Reduce process sensitivity through structured experimentation and device-level insight.

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New Product Introduction (NPI)

Own yield performance during new product ramp from development into high-volume manufacturing.

Conduct structured technical risk assessments.

Rapidly identify and mitigate yield sensitivities during early production.

Shorten yield learning cycles using disciplined experimentation and data-driven decisions.

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Customer & External Technical Engagement

Serve as a primary technical interface for key customers on yield, device performance, and reliability topics.

Present complex technical findings clearly and confid...