Staff Physical Design Engineer (Top-Level EMIR Signoff)

7Rays Semiconductors; San Jose (CA); On-site; USD 130,000 - 160,000; Full time

Job summary

7Rays Semiconductors is looking for a highly experienced Senior/Staff Physical Design Engineer in San Jose, California. The role focuses on EMIR and Power Integrity Signoff for advanced-node SoC designs. This position requires proven expertise in full-chip Static and Dynamic IR Drop analysis, Electromigration verification, and collaboration with multiple engineering teams.

The ideal candidate will optimize Power Delivery Networks and analyze voltage droop behaviors, ensuring high-performance silicon deliveries.

Qualifications

• Proven expertise in full-chip Static & Dynamic IR Drop analysis.
• Strong background in Electromigration verification and power integrity closure.
• Experience collaborating with RTL, Physical Design, STA, Packaging, and Foundry teams.

Responsibilities

• Drive top-level EMIR signoff for complex SoC designs.
• Perform full-chip Static & Dynamic IR Drop analysis.
• Execute Electromigration (EM) verification and closure.
• Optimize Power Delivery Network (PDN) for reliability and noise margins.
• Analyze voltage droop and high-frequency switching behavior.
• Debug power integrity issues and drive closure independently.

Skills

Static IR Drop

Dynamic IR Drop

Electromigration (EM)

Voltage Droop Analysis

Power Integrity Signoff

Current Density Analysis

PDN Optimization

Tcl / Python / Perl scripting

Understanding of OCV / AOCV / POCV

Statistical timing methodologies

Full-chip signoff methodologies

Tools

Ansys RedHawk-SC

Cadence Voltus

Equivalent EMIR tools

Job description

We are seeking a highly experienced Senior/Staff Physical Design Engineer specializing in Top-Level EMIR and Power Integrity Signoff for advanced-node SoC designs (5nm / 3nm / 2nm).

The ideal candidate will have proven expertise in full-chip Static & Dynamic IR Drop analysis, Electromigration verification, PDN optimization, and power integrity closure across multiple successful tapeouts.

You will work closely with RTL, Physical Design, STA, Packaging, and Foundry teams to drive power signoff readiness for high-performance silicon programs.

Key Responsibilities

• Drive top-level EMIR signoff for complex SoC designs.
• Perform full-chip Static & Dynamic IR Drop analysis.
• Execute Electromigration (EM) verification and closure.
• Optimize Power Delivery Network (PDN) for reliability and noise margins.
• Analyze voltage droop and high-frequency switching behavior.
• Debug power integrity issues and drive closure independently.
• Collaborate with STA and Physical Design teams to improve PPA and signoff convergence.
• Develop scalable methodologies to improve runtime and signoff quality.
• Present power integrity risks, status, and mitigation plans to leadership teams.

Required Technical Skills

EMIR / Power Integrity

• Static IR Drop
• Dynamic IR Drop
• Electromigration (EM)
• Voltage Droop Analysis
• Power Integrity Signoff
• Current Density Analysis
• PDN Optimization

Tools

• Ansys RedHawk-SC
• Cadence Voltus
• Equivalent EMIR tools

Advanced Node Experience

• 5nm
• 3nm
• 2nm

Additional Skills

• Tcl / Python / Perl scripting
• Understanding of OCV / AOCV / POCV
• Statistical timing methodologies
• Full-chip signoff methodologies

Preferred Qualifications

• Experience with 2.5D / 3D IC packaging signoff
• Familiarity with TSMC / Samsung / Intel signoff flows
• Experience in HPC, AI Accelerator, or large-scale SoC programs