Job Summary
We are seeking a highly skilled and innovative Low-Voltage to Medium-Voltage Silicon MOSFET Design Engineer
to join our advanced technology development team. In this role, you will be responsible for the architecture, design, simulation, and optimization of next-generation power silicon MOSFETs, with a primary focus on shielded gate structures. Leveraging your deep expertise in semiconductor device physics and the Synopsys TCAD platform, you will drive innovations in device architecture to improve performance metrics such as Rds(on), switching losses, and ruggedness. You will collaborate closely with process integration, characterization, and product engineering teams to bring high-performance discrete power devices from concept to high-volume manufacturing.
Responsibilities
Core Responsibilities
- Shielded Gate Design & Architecture: Drive the architecture and optimization of low-voltage to medium-voltage silicon power MOSFETs, focusing heavily on advanced shielded gate trench structures to achieve industry-leading specific on-resistance and switching figures of merit (FOM).
- Synopsys TCAD Simulation: Utilize the Synopsys TCAD platform (Sentaurus) to perform extensive 2D/3D process and device simulations, predicting electrical characteristics, breakdown voltage, charge-balance optimization, and thermal behavior.
- Layout & Mask Design: Define layout design rules, create device structures, and collaborate with layout engineers to generate mask layouts for prototype fabrication.
- Cross-Functional Collaboration: Partner with process integration engineers to define process flows, design rules, and process variations, ensuring design manufacturability and high yield.
- Characterization & Validation: Analyze electrical test data from inline monitoring, parametric testing (PCM), and lab characterization to validate Synopsys TCAD models and troubleshoot device performance or reliability issues.
Required Qualifications
- Education: Ph.D. in Electrical Engineering, Semiconductor Sciences, Materials Science, or a closely related discipline, with a research focus directly tied to power semiconductor devices.
- Experience: 3+ years of post-degree industrial or advanced academic research experience in silicon power MOSFET design and development.
- Device Physics Expertise: Deep theoretical understanding of semiconductor device physics, carrier transport, breakdown mechanisms, and power MOSFET dynamics (UIS, safe operating area, switching behavior).
- Advanced TCAD Skills: Proven expertise using the Synopsys TCAD suite for comprehensive process integration emulation and electrical device characterization.
- Problem-Solving & Communication: Strong analytical skills to diagnose complex device-level anomalies, paired with excellent communication skills to present technical data across multi-functional engineering teams.
Preferred Qualifications
- Experience with discrete power packaging technologies and their impact on device parasitic elements.
- Familiarity with reliability mechanisms specific to shielded gate power devices, such as shield oxide integrity, electromigration, and high-temperature stress testing (HTGB/HTRB).
- Knowledge of power electronics applications to better align device specifications with system-level requirements.
About Us
More details about our company benefits can be found here:
https://www.onsemi.com/careers/career-benefits
Skills Required
- Ph.D. in Electrical Engineering, Semiconductor Sciences, Materials Science, or a closely related discipline, with research focused on power semiconductor devices
- 3+ years of post-degree industrial or advanced academic research experience in silicon power MOSFET design and development
- Deep understanding of semiconductor device physics, carrier transport, breakdown mechanisms, and power MOSFET dynamics, including UIS, safe operating area, and switching behavior
- Proven expertise using the Synopsys TCAD suite for process integration emulation and electrical device characterization
- Strong analytical problem-solving skills and excellent communication skills
- Experience with discrete power packaging technologies and their impact on device parasitic elements
- Familiarity with shielded-gate power-device reliability mechanisms, including shield oxide integrity, electromigration, HTGB, and HTRB testing
- Knowledge of power electronics applications and system-level requirements
onsemi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about onsemi and has not been reviewed or approved by onsemi.
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Retirement Support — Retirement programs are highlighted by a U.S. 401(k) with a 100% match on the first 4% and immediate vesting. International plans such as Ireland’s defined contribution scheme and Germany’s company-funded pension elements reinforce long-term savings.
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Leave & Time Off Breadth — Time-off policies include ten paid holidays, flexible vacation for exempt employees, and three to five weeks of vacation for non-exempt staff as tenure grows, alongside sick time accrual. Paid leaves span parental, bereavement, jury duty, and military service, with Europe locations offering additional statutory and seniority-based days.
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Parental & Family Support — Family supports include eight weeks of paid parental leave, company-sponsored backup care for children, adults, and pets, and up to $15,000 in adoption assistance. Regional provisions such as Switzerland’s child allowance and accessible EAP counseling show added attention to household needs.
onsemi Insights
What We Do
We are building a better future through intelligent technology. For over 60 years, onsemi and its ancestors have been leading the world’s greatest technology advancements. 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.
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