Physical Design Engineer: Die-to-die Interface (rtl to Gdsii)

Tenstorrent · Semiconductors · United States · Mixed Signal Design

Tenstorrent is seeking a Physical Design Engineer to drive the Die-to-Die (D2D) Physical Implementation from RTL to GDSII for multi-die/chiplet architectures. The role involves full physical design flow, including synthesis, floorplanning, place-and-route, CTS, and sign-off, with a focus on high-speed interfaces.

What you'd actually do

  1. Lead Die-to-Die (D2D) physical implementation and closure, taking high-speed D2D PHYs/controllers from netlist to tapeout.
  2. Own the full PD flow (RTL-to-GDSII): synthesis, floorplanning, P&R, CTS, optimization, and sign-off.
  3. Drive timing and verification, including full STA (setup/hold), SI analysis (crosstalk, IR drop), and achieving sign-off quality DRC/LVS.
  4. Improve and maintain physical design methodologies, flows, and automation scripts (Tcl, Python), with specific focus on D2D routing, power grid design, and timing closure.
  5. Partner closely with full-chiplet teams to meet all tapeout requirements and with the analog design team to resolve interface issues (LEF/LIB, constraints, integration/debug).

Skills

Required

  • ASIC Physical Design
  • advanced nodes (7nm or below)
  • full-chip implementation
  • RTL to GDSII flow
  • synthesis
  • floorplanning
  • place-and-route
  • CTS
  • sign-off
  • high-speed interfaces (D2D, PCIe, HBM, SerDes)
  • timing analysis
  • signal integrity analysis
  • power integrity analysis
  • STA
  • constraints
  • DRC/LVS
  • Tcl scripting
  • Python scripting
  • Synopsys tools
  • Cadence tools
  • Mentor tools
  • B.S./M.S. in EE/CE or related field

Nice to have

  • D2D PHYs/controllers implementation
  • D2D routing
  • power grid design
  • timing closure
  • analog design team collaboration
  • interface issue resolution

What the JD emphasized

  • 5+ years at advanced nodes (7nm or below)
  • multiple successful tapeouts
  • full physical design flow
  • high-speed D2D interfaces
  • multi-die/chiplet architectures
  • full STA (setup/hold)
  • SI analysis (crosstalk, IR drop)
  • sign-off quality DRC/LVS
  • D2D routing
  • power grid design
  • timing closure
  • analog design team
  • interface issues
  • EDA tool expertise across Synopsys/Cadence/Mentor