Physical Designer Engineer, Synthesis​/PnR

Rivianis on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract.

As a company, we constantly challenge what’s possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations.

As a Physical Design Engineer, you will contribute to all design phases of physical design of high performance SoC design at both the block and subchip levels, as well as the full-chip level from RTL to GDSII. You will collaborate with the Foundry Process Engineer, SoC Architect, Microarchitecture, Packaging, Signal Integrity and Power Integrity teams to drive the overall Physical Design aspects, leading to a successful tapeout and production silicon.

• Perform subchip level and block level place and route, and close design to meeting performance, power and area.
• Lead and perform all aspects of full chip SoC integration activities: die size optimization, floor planning, hard IP integration, partitioning, block/chip level clock planning, bump placement / RDL routing, power grid generation, full chip STA timing, DFT strategy planning, and final physical verification.
• Good knowledge of timing analysis, power analysis, physical verification (DRC/LVS), and formal verification
• Working knowledge of UPF specification in Power Intent design, implementation, and verification of power gating, level shifter, and isolation.
• Define EM-IR signoff requirements and sign-off methodology.
• Define and support Static and Dynamic, thermal, electro-migration, peak current, di/dt, and effective resistance analysis
• Develop and support Chip-package-Co-Analysis (CPA) and Chip-Power-Model (CPM) on- die model for package & die co-design analysis
• Be an EM-IR sign-off lead with successful tape out track records
• Excellent hand-on experience in voltage drop analysis using redhawk or redhawk-SC
• Excellent hand-on experience and debugging skills of finding root cause of voltage drop and EM issues
• Solid background in EM-IR fundamentals, analytical aptitude and excellent attention to detail
• Work closely with the Foundry Engineer and Microarchitecture team to establish logic levels, Multi-Vt library mixes and choices of tracks, metal-stackup, etc.
• Define flows through various EDA tools and write scripts for automation for floor planning, placement, routing, crosstalk avoidance, judicious usage of cell libraries and physical verification
• Work with the Microarchitecture, Signal Integrity, Power Integrity and Thermal team to ensure that the floorplan and the logic is designed in such a way such that the Substrate/Packaging and Board Layout and the Power Delivery comprehend the power domains, multiple voltages, power integrity requirements, power gating, specify power sequencing to eliminate leakage paths, always-on power, minimize hot-spots, etc.
• Design the floorplan to ensure that the power distribution for the chip for the various voltage domains is consistent with the bump and bump-ball map to ensure power integrity (i.e., minimize voltage droop, utilization of local LDOs) and signal integrity (e.g., aggressor nets)
• Ensure that the clocking architecture is robust and meets the timing requirements – i.e., well versed in Clock Tree Synthesis, Static Timing Analysis, Timing closure methodologies, Clock gating, reference clocks, PLL placement, clock muxing, etc.
• Well versed in parasitic extraction, LVS/DRC and other verification checks – Physical, Power, Post-Layout Timing

• At least 12 years of…