Senior Physical Design Engineer Jobs

NHanced Semiconductors

Location:
United States, Batavia, Illinois

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

As a Senior Physical Design Engineer, you will be responsible for the physical implementation of complex ASIC and interposer designs, from floorplanning to tapeout. You will work in a highly collaborative environment, leveraging Cadence design tools and Git for version control, ensuring efficient and high-quality execution. The ideal candidate is a self-starter who thrives with minimal supervision and has a strong background in advanced node physical design methodologies.

Job Responsibility:

Drive full-chip physical implementation of 2.5D interposer and ASIC designs, including floorplanning, placement, clock tree synthesis (CTS), routing, and optimization
Ensure design compliance with timing, power, and area (PPA) requirements, as well as DFM, DRC, and LVS constraints
Utilize Cadence tools (Innovus, Virtuoso, Tempus, Voltus, Pegasus, etc.) for physical design, verification, and signoff
Develop and execute timing closure strategies, working with STA engineers to meet performance goals
Optimize power distribution networks (PDN) and electromigration (EM) reliability in multi-die packaging environments
Work with package and system engineers to optimize die-to-die interconnect, bump placement, and TSV integration
Collaborate with RTL designers, DFT engineers, and backend teams to ensure seamless integration
Implement ECOs (Engineering Change Orders) and efficiently iterate design revisions
Utilize Git-based version control workflows for design database management and collaborative development
Identify and resolve congestion, signal integrity (SI), and crosstalk issues in complex designs
Ensure successful tapeout by running full-chip physical verification and working with foundry partners

Requirements:

US Citizenship
5+ years of experience in physical design, specifically in ASIC, SoC, or advanced packaging (2.5D, 3DIC) technologies
Hands-on experience with Git-based version control systems for managing design revisions
Experience with timing closure and signal integrity
Proficiency in Cadence tools for physical design, timing analysis, and signoff
Strong understanding of RTL-to-GDSII flows, including floorplanning, power planning, place-and-route, and timing closure
Working knowledge of parasitic extraction (PEX), power integrity (PI), and thermal analysis in multi-die environments
Ability to work independently with minimal supervision and drive tasks to completion
Excellent verbal and written communication skills for collaboration across engineering teams
Strong debugging skills and ability to analyze tool reports, logs, and simulation results

Nice to have:

Experience in 2.5D/3DIC packaging and heterogeneous integration
Hands-on experience with chip-package co-design methodologies
Prior engagement with foundry process nodes and PDKs for advanced packaging
Familiarity with high-speed die-to-die interconnect design and CoWoS/Fanout-WLP processes
Knowledge of scripting (TCL, Python, Perl, or shell scripting) to automate design tasks

Additional Information:

Job Posted:
December 10, 2025

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Senior Physical Design Engineer