Intern for SiC JFET Applicaiton Engineering
Bucheon-si, Gyeonggi-do, South Korea
Posted on Aug 25, 2026
The Applications Engineer will be involved in the entire process from new product development to technical support for mass production. The primary responsibility includes defining development targets and validating performance for new technology SiC JFET and SiC JFET Cascode (750V/1200V) through comprehensive testing.
Proficiency in handling high-voltage power supplies, digital oscilloscopes, electronic loads, and DMMs for power electronics experiments is essential.
This role also supports design assistance for new and existing products, customer technical support, and preparation of promotional materials related to the product portfolio. Technical support includes troubleshooting customer issues, designing evaluation boards with user guides, and writing application notes.
Additionally, the engineer will design and validate test circuits and PCBs for analyzing new product characteristics.
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:
| 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. |
Requirements:
- Bachelor’s degree or higher in Electrical/Electronic Engineering
- English communication skills (written and verbal)
- Basic understanding of Si and SiC MOSFET principles and their role in power electronics
- Basic knowledge of SMPS (Switching Mode Power Supply)
Preferences:
- Experience in electrical/electronic/semiconductor industry, particularly in device characterization or application engineering
- In-depth knowledge of power semiconductor devices, including SiC JFET, Cascode structures, and Power MOSFET technologies
- Understanding of various topologies and power conversion (AC/DC, DC/DC)
- Technical skills: P-Spice, Simetrix, PCB Layout (Allegro, Altium), MATLAB, and TCAD, etc.
- Work within the Application team to support BU objectives
- Define and validate specifications for SiC JFET and SiC JFET Cascode
- Conduct comprehensive experiments to verify product performance
- Design and build customized test circuits and automated test systems for product characterization
- Provide technical support including design reviews, promotional material preparation, and customer issue troubleshooting
- Develop evaluation boards for target applications
- Prepare and deliver technical collateral (datasheets, application notes, user guides)
- Analyze market trends and benchmark competitor products related to SiC JFET and Cascode technology