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.

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 (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