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Senior Diffusion Module Engineer

AMI Semiconductor

Hopewell Junction, NY · Posted August 3, 2026

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  • Excel
  • PowerPoint
  • Jmp

About the job

onsemi is seeking a Sr. Diffusion Engineer. You will develop and support the manufacturing of 300mm silicon wafers used for Automotive and Consumer applications throughout the world.  You will also provide process engineering support for additional process areas.  In this team-based environment, you will work closely with the integration, process, and equipment teams to deliver robust, high-quality products to our customers.

Own critical Furnace processes and associated health of ASM/TEL/Bruce equipment in a fast-paced, 24/7 manufacturing environment.

Apply technical skills to implement equipment and process improvements that increase product performance, reduce cost, and increase throughput and yield.

Design and document experiments utilizing engineering methodology to improve yield, cost, and throughput.

Resolve complex, time-sensitive technical problems to maintain production or development schedules.

As a Furnace Engineer, you will be expected to make decisions using data analysis and statistical process control (SPC) techniques.

Provide daily process and product lot disposition support in the furnace processing area.

Contribute to the understanding and resolution of all equipment-level shifts in tool performance

Within the first six to twelve months, develop advanced sustaining responsibilities and contribute to cost reduction, yield improvement, and production throughput increase.

Education:  BS degree in Engineering or a technical field. An MS degree is a plus

Experience: 7+ years in semiconductor processing or a similar industry

Knowledge of furnace process with a focus on ASM, TEL, and/or Bruce equipment

Experience working in cross-functional teams to achieve goals and metrics

Experience with FMEA risk analysis is a plus

Intermediate-level data analysis skills, specifically in Excel or JMP, using formulas, pivots, and charts, are required

Proficiency in Microsoft Office, particularly PowerPoint

Strong communication skills with experience in presenting technical project details

Self-motivated and results-oriented

Fluency (written and oral) in English is required

Salary: onsemi is excited to share the base salary range for this position is $114.000 to $193,700 exclusive of fringe benefits or potential bonuses. The final pay rate for the successful candidate will depend on geographic location, skills, education, experience, and/or consideration of the internal equity of our current team members. We also offer a competitive benefits package. https://www.onsemi.com/site/pdf/Benefits-Summary-USA.pd

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