Reliability Engineer

Primary Duties & Responsibilities

• Develop and execute qualification plans for new products and technologies
• Design and oversee reliability testing including burn-in, life test, HTOL, TC, thermal shock, damp heat, HAST
• Provide instructions and technical guidance to technicians and operators performing reliability stresses and tests
• Analyze accelerated stress data to determine acceleration factors, lifetime projections, FIT, reliability confidence intervals
• Perform statistical analysis using JMP, Excel, SQL, or similar tools to identify reliability trends and degradation mechanisms
• Determine samples requiring physical failure analysis and coordinate FA activities
• Interpret results from SEM, FIB, EDX, cross-section analysis, material analysis, and related techniques
• Drive corrective actions and reliability improvements through root-cause investigations
• Develop, validate, and optimize electrical and optical test methodologies for photodiodes and laser devices
• Improve test capability, measurement accuracy, throughput, repeatability, and reproducibility
• Author Qualification Test Reports (QTRs), reliability assessments, and customer-facing reliability documentation
• Present reliability test results and recommendations to management, customers, and cross-functional teams

Education & Experience

• B.S. or M.S. in Physics, Engineering, Materials Science, Statistics, Applied Mathematics, or related technical discipline
• 3+ years of experience in semiconductor reliability, optoelectronic device engineering, product engineering, test engineering, or related fields
• Experience working with semiconductor optoelectronic devices or optical communication components

Skills

• Reliability analysis and lifetime modeling
• Statistical analysis using JMP, Excel, Python, or equivalent tools
• Design of Experiments (DOE)
• SQL and data analysis tools
• Strong understanding of III-V semiconductor device physics
• Knowledge of laser and photodiode operation, performance characterization, and degradation mechanisms
• Optical and electrical test development for photodiodes and laser devices
• Reliability and qualification standards for semiconductor and optoelectronic products
• Ability to manage multiple projects simultaneously and meet aggressive deadlines
• Strong technical communication skills, both written and verbal
• Excellent problem-solving and root-cause investigation skills
• Effective collaboration within cross-functional engineering teams

About Us

Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program.