Principal Package Design Engineer

Renesas Electronics • San Jose, CA

5d • $200,000 - $250,000 • Onsite

About The Position

We are seeking a Senior Advanced Packaging Engineer to lead the development and integration of next-generation packaging solutions for high-performance semiconductors and electronic products. This role will focus on advanced package architectures, assembly processes, thermal and mechanical reliability, and cross-functional collaboration with design, manufacturing, suppliers, and quality teams. The ideal candidate has deep expertise in semiconductor packaging technologies and a strong track record of bringing complex products from concept through qualification and high-volume production.

Requirements

• MSc or PhD degree in Electrical Engineering, Materials Science, Mechanical Engineering, Chemical Engineering, or related field.
• 5+ years of experience in semiconductor packaging or advanced electronics packaging.
• Strong knowledge of advanced packaging technologies, materials, and assembly processes.
• Experience with package reliability testing and qualification standards.
• Deep understanding of thermal, mechanical, and electrical interactions in package design.
• Experience working with OSATs, substrate vendors, assembly houses, and semiconductor supply chains.
• Ability to troubleshoot packaging failures and drive root cause/corrective action.
• Strong project leadership and cross-functional communication skills.

Nice To Haves

• Master’s or PhD in a relevant engineering discipline.
• Experience with power semiconductor devices and packaging including Si/SiC/GaN MOSFETS, Power Modules, Intelligent Power modules and their applications in consumer and industrial, automotive, performance computing.computing, AI/ML hardware or mobile products.
• Hands-on experience with tools for package design and simulation such as: Cadence Allegro Package Designer, Solid works, ANSYS, COMSOL, JMP / Minitab.
• Knowledge of JEDEC standards, IPC standards, and semiconductor qualification methods.
• Experience in W2W, D2W, D2D 3D heterogeneous integration and chiplet-based packaging.

Responsibilities

• Lead the design, development, and qualification of advanced semiconductor packaging solutions, including: Flip-chip, Chip Embedding, Wafer-level packaging (WLP/FOWLP), Panel-level packaging (laminate, molding), 2.5D/3D packaging, System-in-package (SiP), Ball grid array (BGA/CSP).
• Define package architecture based on electrical, thermal, mechanical, reliability, and cost requirements.
• Drive package technology selection and development for new product introductions.
• Work closely with IC design, substrate, board, thermal, reliability, and manufacturing teams to ensure package compatibility and performance.
• Oversee package layout reviews, stack-up definition, material selection, and interconnect strategy.
• Perform and guide simulations and analysis related to: Signal integrity / power integrity, Thermal performance, Mechanical stress / warpage, Design for manufacturability (DFM).
• Develop assembly flows and process requirements for OSATs and manufacturing partners.
• Lead package qualification activities, including DOE planning, failure analysis, and reliability testing.
• Resolve packaging-related issues during NPI prototype builds, qualification, and production ramp.
• Collaborate with suppliers and internal/external manufacturing partners on process improvements, material evaluation, and yield optimization.
• Create and maintain package specifications, design rules, process documentation, and technical reports.
• Mentor junior engineers and provide technical leadership across packaging initiatives.

Benefits

• Short-Term Incentive (STI): This position is eligible to participate in the company's annual short-term incentive/bonus program, subject to company performance and individual achievements.
• Long-Term Incentive (LTI): This role is eligible for a new-hire equity grant under the company's long-term incentive guidelines, subject to board approval and standard vesting schedules.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior