Diffusion Module Engineer

onsemi; Hopewell Junction (NY); On-site; USD 114,000 - 193,700; Full time

Job summary

onsemi is seeking a Sr. Diffusion Engineer to develop and support 300mm wafer manufacturing, collaborating with integration, process, and equipment teams to deliver high‑quality products globally.

You will own furnace processes, implement improvements, and design experiments to boost yield, throughput, and cost efficiency while solving time‑critical issues in a fast‑paced 24/7 environment. Strong data analysis and SPC are essential.

Qualifications

• BS in Engineering or technical field; MS preferred.
• 7+ years in semiconductor processing or similar.
• Furnace process knowledge (ASM/TEL/Bruce).
• Experience in cross‑functional teams to hit metrics.
• FMEA risk analysis is a plus.
• Intermediate data analysis using Excel/JMP; strong PowerPoint skills.
• Fluent English, both written and oral.

Responsibilities

• Own furnace processes and equipment health in a 24/7 manufacturing environment.
• Implement process improvements to boost yield, throughput and cost efficiency.
• Design experiments using engineering methods to improve yield and throughput.
• Resolve complex issues to maintain schedules in production or development.
• Make data‑driven decisions using SPC techniques.
• Provide daily disposition support for furnace processing.

Skills

Data analysis

Cross‑functional teamwork

Effective communication

Self‑motivation

English fluency

Education

BS in Engineering

MS degree (plus)

Tools

Excel

JMP

PowerPoint

Job description

Job Description

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.

Responsibilities

• 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.

Qualifications

• 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.pdf

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 [e-mail] for assistance.