Senior CFA Design Engineer

Senior CFA Design Engineer onsemi - 3.8 San Jose, CA Job Details Full-time 20 hours ago Qualifications Quality control corrective actions Version control MATLAB Bachelor's degree in electrical engineering Automation Bachelor's degree in Physics Software coding Bachelor of Science Design of manufacturing processes Engineering Engineering process optimization Data reporting Git Corrective and preventive actions (CAPA) Technical report writing Electrical engineering Optics Statistical analysis Analysis skills Bachelor's degree Master of Science Mentoring Physics Experimental design Chemistry Master's degree in electrical engineering Root cause analysis Data visualization Senior level Electrical Engineering Cross-functional collaboration Semiconductor experience Project leadership Research & development Bachelor's degree in materials science Manufacturing company experience Communication skills Sensors Python Materials Science Bachelor's degree in chemistry Cross-functional communication 10 years Full Job Description onsemi is seeking a Senior Engineer to join the Color Filter Array (CFA) Research and Development (R D) team supporting CMOS image sensor technology. This role is intended for a self-driven, detail-oriented technical leader with deep semiconductor manufacturing experience who can drive process and design solutions from concept through characterization and transfer to manufacturing. The position requires hands-on expertise in reticle design and layout, CFA and microlens processing, FEOL CMOS imager device layout/design, and a strong understanding of FEOL semiconductor process flows. Coding experience is required to enable efficient data analysis and automation. Responsibilities Lead development and optimization of CFA processes for CMOS image sensors, including coat/develop and photolithography process windows across multiple pixel architectures. Develop, integrate, and optimize microlens processes (materials, patterning, reflow/curing, and metrology) to meet optical and yield targets. Own reticle design and layout deliverables for R D and productization, ensuring correct layer usage, alignment strategy, critical dimension intent, and manufacturability. Design and layout

FEOL CMOS

imager device structures (e.g., pixel, photodiode, transfer gate, isolation, and routing concepts) in collaboration with device/design teams to enable robust process integration. Drive FEOL process integration understanding by mapping device/layout intent to FEOL semiconductor process flows (litho, implant, oxidation/diffusion, deposition, etch, CMP, thermal steps), and troubleshooting excursions. Use Design of Experiments (DOE) to optimize and screen new process options; define split plans, success criteria, and statistically sound conclusions. Extract, analyze, and visualize probe, optical, and characterization data; develop scripts/tools to automate analysis, reporting, and data integrity checks. Apply structured problem solving (8D or equivalent) to overcome process challenges; lead root-cause analysis and corrective/preventive action plans. Partner with manufacturing and cross-functional teams to transfer new imaging processes/products into high-volume production, including documentation, control plans, and qualification support. Communicate technical status and recommendations via clear presentations and written reports; mentor junior engineers and contribute to patentable innovations. Qualifications BS (MS preferred) in Electrical Engineering, Materials Science, Physics, Chemistry, or a related engineering/science discipline. Minimum 10+ years of experience in the semiconductor industry, with direct experience supporting technology development and/or high-volume manufacturing.

Required:

Reticle design and layout experience (mask set definition, layout review, DRC/LVS/layout checks as applicable, and tape-out readiness).

Required:

Color filter (CFA) and microlens process development/integration experience for CMOS image sensors.

Required:

Experience laying out and designing

FEOL CMOS

imager device structures and understanding how layout intent impacts FEOL integration and performance. Strong understanding of FEOL semiconductor process flow (lithography, implant, oxidation/diffusion, deposition, etch, CMP, thermal processing) and integration tradeoffs. Required coding experience (e.g., Python, MATLAB, or similar) for data analysis, visualization, and workflow automation; familiarity with version control (e.g., Git) preferred.

Preferred:

Familiarity with broader semiconductor fab processes and toolsets beyond FEOL (e.g., metrology, defect inspection, and optical characterization) Experience in definition, implementation, and analysis of Design of Experiments (DOE) and statistical process control (SPC) Demonstrated technical leadership, including mentoring, project leadership, and cross-site/cross-functional collaboration Experience driving technology milestones through productization and manufacturing release (documentation, qualifications, and change control) Strong problem-solving skills with hands-on experience using 8D (or equivalent) to drive root-cause and corrective actions Excellent written and oral communication skills; able to communicate complex technical topics to diverse audiences Experience with image sensor optical stack modeling and/or characterization (e.g., CFA/microlens-related optical metrics and metrology) About Us onsemi (

Nasdaq:

ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world's most complex challenges and leads the way in creating a safer, cleaner, and smarter world. More details about our company benefits can be found here: https://www.onsemi.com/careers/career-benefits About the Team We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work. onsemi is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact for assistance.