Device Engineer
AMI Semiconductor
Gresham, OR · Posted October 19, 2026
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About the job
onsemi is seeking a highly motivated individual to join our Device Engineering / Yield Enhancement group in Gresham, OR. An Engineer in this position will work with other Engineers and Technicians in a fast-paced Silicon wafer fab production and technology development environment. Primary technology nodes range from sub-0.18um to 0.5um. Group responsibilities include Yield Enhancement (both wafer level and die level), Technology Transfers, New Product Introduction, and other production sustaining/optimization activities. This position will build upon your Semiconductor device knowledge across the entire Silicon manufacturing chain (from bare wafers to finished goods), with a significant focus on fab manufacturability. Communication skills will be important, since this position regularly interfaces with in-house Fab Process Engineering, Technology Development, Failure Analysis, Design/Layout, wafer probe/test, in-line defect control, Quality, and Business Unit part owners and managers.
Responsibilities will include one or more of the following:
Yield enhancement for production products
New product introduction into the Fab
Scrap reduction and prevention.
Process improvements using existing and newly acquired process equipment, often working directly with Process Engineering
Minimize variation (lot to lot, wafer to wafer, product to product)
Lower cost
Improve throughput
Lower defectivity
Standardization / Best Known Methods
Analyze manufacturing and test data to improve product performance
Ensure all shipped material meets requirements
Present trends, KPIs, and process improvements to management team
Qualifications:
BS/MS or equivalent in Engineering, with BSEE/MSEE preferred. Will also consider Physics, Chemistry, Chemical Engineering, Materials Engineering, or a related technical field
Broad understanding of semiconductor devices, such as CMOS, DMOS, and Bipolars
5+ years of experience in semiconductor process technology and wafer fabrication
Problem-solving mindset
Comfortable using data analysis and statistics to reach conclusions
Concise and clear written and oral communication skills
Strong interpersonal skills
Desired:
Experience in one or more of the following engineering disciplines: Process/Device Integration, Circuit Design / Simulation, Test (parametric, circuit), Process Engineering
Experience with DOE and experiment analysis
10+ years of experience in semiconductor process technology and wafer fabrication
Ability to relate product circuit performance to semiconductor device parameters
Knowledge of post-fab product manufacturing (ex: assembly, and test)
Ability to debug issues at any point in a product manufacturing sequence
Hands-on knowledge of GDS layout viewing and editing
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