GaN Device/Product Development Engineer

Job Title

GaN Device/Product Development Engineer

Role Summary

Responsible for end-to-end tape-out execution and mask data delivery for Gallium Nitride (GaN) technologies. The role supports multiple concurrent tape-out flows, mask data generation/signoff, and coordination with foundries and mask vendors.

Position is based in Kodaira (Tokyo), Japan. The team uses a hybrid work model: two remote days per week with on-site collaboration days (assigned Tuesday–Thursday).

Experience Level

Mid-level. No specific years-of-experience stated.

Responsibilities

Execute and coordinate tape-out and mask activities to ensure timely, high-quality mask deliverables.

• Develop and verify PCM (Process Control Monitor) layouts and alignment mark layouts to meet lithography/process requirements.
• Generate and validate stepper reticle 1:1 aligner mask layouts; optimize mask layouts for manufacturability.
• Run DRC (Design Rule Checks), mask data validation, and MEBES checks to ensure mask write readiness.
• Manage tape-out operations and schedules across multiple flows; coordinate with design, process, and mask vendors.
• Prepare mask data per foundry requirements and perform final verification and signoff of mask data.
• Track mask orders and associated purchase orders; coordinate scheduling, delivery, and issue resolution with mask houses.
• Maintain quality and compliance of deliverables against internal standards and external vendor specifications.
• Communicate and align activities with global and Japanese-speaking stakeholders.

Requirements

Key technical skills, languages, and working-style expectations.

• Must-have: Proficiency with layout and verification tools such as Cadence and Calibre.
• Must-have: Experience working in a Unix/Linux environment.
• Must-have: Japanese language proficiency; good English communication skills for collaboration with international teams.
• Must-have: Strong attention to detail, ability to manage multiple priorities, and proactive problem-solving mindset.
• Nice-to-have: Familiarity with reticle design and mask data preparation flows.
• Nice-to-have: Basic understanding of mask data formats (e.g., MEBES/JobDeck) and mask house interactions; LEDIT experience is a plus.
• Nice-to-have: Prior experience with foundry tape-out processes and working in cross-functional global engineering environments.

Education Requirements

Bachelor's or Master's degree in Electrical Engineering, Materials Science, Physics, or a related technical field.

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.