Device Engineer

Background

Driven by strong and growing demand for power semiconductor devices, particularly in AI-related applications, improving factory productivity has become an urgent priority.

We are seeking talented engineers who can contribute broadly as Device Engineering / Process Integration Engineers , supporting activities ranging from new technology development and new product introduction to yield/quality improvement of mass production products, process optimization, cost reduction, and troubleshooting.

Responsibilities

Roles & Responsibilities

In an 8-inch wafer fabrication facility , you will act as a technology owner for Analog IC processes , leveraging expertise in device engineering and process integration to drive development and manufacturing excellence.

Lead and execute development and transfer projects for new technologies and new products

Improve product quality and yield through process design and optimization from development through mass production

Drive continuous improvement of quality, yield, and reliability for existing mass production products, contributing to technology robustness, cost reduction, and productivity enhancement

Manage manufacturing conditions for production products (Control Plans, FMEA, SPC)

Perform root cause analysis of issues and implement corrective actions based on risk management, including recurrence prevention (8D, FTA, Why-Why analysis, Risk Assessment, etc.)

Key Relationship

Direct Report: Manager, Device Engineering Department

Key Interfaces: Engineers and managers within Aizu Wafer Fab, Global Engineering Teams

Qualifications

Qualifications (Required)

Bachelor’s degree or higher in engineering or a related field

Experience in device engineering or process integration in a semiconductor wafer fabrication environment (Minimum ~5 years)

Fundamental knowledge of IC processes, device physics, electrical characteristics/testing, analog IC circuits, and reliability

Understanding of product specifications (SPEC) and design margin concepts

Hands-on experience in data analysis (yield, electrical characteristics, defect/failure analysis) and strong problem-solving skills

Practical experience in identifying root causes and implementing corrective actions for yield loss or performance issues

Experience leading cross-functional projects involving manufacturing, process engineering, design/product development, quality, and backend operations

Ability to communicate effectively in English (email and web meetings) with global teams and U.S. headquarters

Business-level English proficiency (e.g., TOEIC score of ~600 or higher)

Japanese language proficiency (equivalent to JLPT N2 level or above)

Valid work authorization that permits employment in Japan at the time of application

No visa sponsorship available for this position

Preferred Qualifications

Experience as a technical lead or engineer in new technology development or technology transfer projects

Experience in semiconductor circuit design, device simulation, or test development

Knowledge and hands-on experience with semiconductor front-end processes and equipment

Leadership experience in yield improvement or process optimization projects

Ability to communicate effectively in technical discussions in English meetings

Experience working in a multinational or global company environment is a plus

Experience in driving process optimization and business improvement using AI technologies

Ideal Candidate Profile

Continuously improves personal skills and can adapt to broader and deeper technical responsibilities

Understands factory and departmental KPIs and is committed to achieving them

Demonstrates strong ownership of products/technologies and drives problem-solving and improvements through to completion

Able to identify root causes and solve problems logically and systematically

Proactively identifies risks and implements preventive actions through risk assessment

Effectively communicates and collaborates across teams, influencing and leading stakeholders

Demonstrates flexibility and a positive attitude toward change and new technologies

Possesses a customer-oriented mindset and understands on-site realities, making decisions based on overall optimization rather than partial optimization

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:

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.