Yield & Quality Engineer – UHP and CW Laser / Photonics Semiconductor

Job Title

Yield & Quality Engineer – UHP and CW Laser / Photonics Semiconductor

Role Summary

Lumentum is hiring a Yield & Quality Engineer to improve manufacturing yield, device performance, and product reliability for ultra-high-power (UHP) and continuous-wave (CW) semiconductor laser chip fabrication. The role partners with R&D, process engineering, manufacturing, test, reliability, quality, and suppliers to drive data-driven process improvements and resolve complex quality issues.

Experience Level

Senior-level. Typical experience ranges per education path: Ph.D. +5 years, M.S. +8 years, B.S. +10 years (see Education Requirements for details).

Responsibilities

Primary responsibilities focus on yield improvement, root-cause analysis, and cross-functional problem solving.

• Drive yield improvement for wafer and chip fabrication through analysis of manufacturing, process, test, and device-performance data.
• Analyze large datasets to identify yield limiters, process excursions, and systematic failure signatures.
• Lead root-cause investigations for manufacturing and customer quality issues using structured problem-solving methodologies.
• Design and execute DOE with process engineering and R&D to validate process improvements.
• Establish and monitor yield, process, and quality metrics to detect abnormal trends and excursions.
• Lead or contribute to 8D, CAPA, FMEA, SPC, and other quality-improvement activities.
• Collaborate cross-functionally with device engineering, wafer fabrication, chip processing, test, reliability, quality, and suppliers.
• Communicate technical findings and recommendations clearly to manufacturing, engineering teams, and management.

Requirements

Must-have technical skills and experience; nice-to-have items indicated where applicable.

• Strong understanding of semiconductor device physics, preferably semiconductor lasers, high-power laser diodes, or related optoelectronic devices.
• Experience in UHP/high-power laser chip fabrication or relevant experience in photonics, optoelectronics, III-V semiconductors, or semiconductor manufacturing.
• Proven yield engineering and data-mining experience; ability to translate manufacturing and test data into actionable improvements.
• Solid knowledge of statistical and engineering methods such as SPC, DOE, correlation/regression analysis.
• Experience investigating quality, reliability, manufacturing, or customer-return issues and driving from containment through verified corrective action.
• Familiarity with quality and problem-solving methodologies: 8D, CAPA, FMEA, SPC.
• Experience with analytical/data-mining tools such as JMP, Python, SQL, or equivalent (highly desirable).
• Strong technical communication and structured problem-solving skills; ability to present findings to technical and management audiences.

Education Requirements

Degree in Electrical Engineering, Physics, Chemistry, Materials Science, or a closely related technical discipline. Required combinations: Ph.D. with 5+ years relevant industry experience; M.S. with 8+ years relevant industry experience; B.S. with 10+ years relevant industry experience. Relevant experience preferably includes semiconductor lasers, photonics, optoelectronics, or compound-semiconductor fabrication.

About the Company

Company: Lumentum

Headquarters: Milpitas, California, United States

Lumentum develops optical and photonic products and subsystems for telecommunications, data centers, cloud computing and industrial applications, providing lasers, modulators, transceivers and test solutions that enable high-speed networking and advanced photonics.