Device Design Engineer

Job Title

Device Design Engineer

Role Summary

Develop switching power MOSFETs for 12V–80V applications throughout the full product cycle: device architecture, TCAD simulation, process integration, test development and characterization. Collaborate with fab/process engineers and IC driver designers to deliver manufacturable, high-performance devices.

Experience Level

Senior — requires 7+ years' experience in power semiconductor device engineering.

Responsibilities

Core responsibilities include device development, process integration, simulation, and characterization:

• Design and optimize switching power MOSFET device structures for performance and ruggedness.
• Develop and document process flows and layout rules that support manufacturability.
• Plan and run TCAD simulation experiments to identify critical design and process parameters.
• Work with fab and process engineers to develop process recipes and engineering lots.
• Prepare and execute test and product mask layouts with CAE support.
• Define testing and characterization methods; analyze measured data to optimize devices.
• Provide engineering support to maintain yield and product performance.

Requirements

Must-have technical skills and experience. Education requirements are listed below.

• Expertise in one or more: power semiconductor devices, device physics, reliability, semiconductor manufacturing, materials science, TCAD modeling, or device layout.
• Practical understanding of switched-mode power applications, including package and PCB parasitics, thermal implications, and MOSFET driver requirements.
• Proven ability to develop process-aware device designs and translate test results into design/process improvements.
• Experience collaborating with fabrication and IC design teams to deliver manufacturable products.
• Nice-to-have: demonstrated track record of commercially successful power MOSFET developments and experience with advanced switching MOSFET structures.

Education Requirements

M.S. or Ph.D. in a relevant field (for example electrical engineering, materials science, or physics) with 7+ years' experience in power semiconductor device engineering.

About the Company

Company: Renesas

Headquarters: Hitachinaka, Japan

Renesas is a global leader in embedded semiconductor solutions, providing high-quality products across automotive, industrial, infrastructure, and IoT sectors. With over 22,000 employees in more than 30 countries, the company focuses on scalable solutions that enhance user experience and drive innovation while committed to sustainability and energy efficiency.