Reliability Staff Engineer: Power Packaging & Chip Interface

Crosslinked; Scottsdale (AZ); On-site; USD 130,000 - 190,000; Full time

Job summary

onsemi seeks a Reliability Staff Engineer in Scottsdale, AZ to lead reliability and robustness efforts for power semiconductor products across Si, SiC, GaN. You will drive chip–package interaction analysis, accelerated tests, RCCA, and cross‑functional collaboration with fab, packaging, and engineering teams.

The role requires deep electro‑thermo‑mechanical expertise, experience with power cycling, and the ability to translate customer mission profiles into robust qualification strategies.

Qualifications

• Strong understanding of physics of failure, electro‑thermo‑mechanical mechanisms in semiconductor devices and packages.
• Proven experience with chip–package interactions, package materials, and assembly processes.
• Hands‑on experience with power cycling reliability testing and accelerated thermo‑mechanical stress.
• Experience with power semiconductor products (Si, SiC, GaN discrete devices and/or power modules).
• Proficiency with structured problem‑solving tools (FMEA, 8D, root cause analysis).
• Experience with statistical analysis tools (JMP, Minitab) and MS Office.
• Experience in extracting data, creating reports and dashboards using Power BI, Python, Oracle and/or SQL is a plus.
• Knowledge of industry reliability standards (JEDEC, AEC, IEC, MIL, AQG324) preferred.
• Experience working with automotive customers/OEMs is a plus.

Responsibilities

• Interface with Fab, Packaging, Product Engineering, Manufacturing, and Business Units.
• Define and own NPD reliability and robustness requirements for power semiconductor products.
• Lead reliability assessments for advanced power packaging technologies (e.g., sintered die attach, copper clip/ribbon, embedded die, power modules, double‑sided cooling).
• Analyze chip–package interaction effects and thermo‑mechanical failure mechanisms and propose design, process, or material improvements.
• Influence package, device, and process design decisions through data‑driven reliability recommendations.
• Lead technical reliability discussions to align stakeholders on risk, tradeoffs, and qualification strategy.
• Design and execute power cycling, thermal cycling, and accelerated thermo‑mechanical stress tests.
• Develop, validate, and calibrate lifetime and acceleration models based on physics of failure and test data.
• Conduct early‑stage FMEA and drive RCCA for reliability stress failures.
• Collaborate with internal labs on reliability testing and failure analysis.
• Correlate accelerated stress results to customer mission profiles and application use conditions.
• Communicate complex reliability data, physics‑of‑failure insights, and risk assessments clearly to technical and non‑technical stakeholders.
• Manage multiple projects in a fast‑paced, cross‑functional environment.

Education

PhD in Electrical Engineering, Materials Science, Mechanical Engineering, or related field

MS with 3–5 years of relevant experience

Tools

JMP

Minitab

Power BI

Python

SQL

Oracle

MS Office

Job description

onsemi seeks a Reliability Staff Engineer in Scottsdale, AZ to lead reliability and robustness efforts for power semiconductor products across Si, SiC, GaN. You will drive chip–package interaction analysis, accelerated tests, RCCA, and cross‑functional collaboration with fab, packaging, and engineering teams.

The role requires deep electro‑thermo‑mechanical expertise, experience with power cycling, and the ability to translate customer mission profiles into robust qualification strategies.