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Branch Currents Measurements in Layout Power Grid

Tao247200

Hello, I am trying to measure the branch currents in the power grid of a layout for research purposes.

Specifically, I have used my testbench (.vcd) to perform the dynamic power estimation in Voltus and dump the .ptiavg file. However, it only documents the consumed current at the cell level. What I want to figure out is how the current is flowing from the supply source. The total current will be distributed to branches in the power grid which can be calculated using Kirchoff current law (KCL). Is there any feature in Voltus or Innovus to report such information?

Besides, I noticed Ansys Redhawk SC allows for placing virtual probes at arbitrary locations for voltage measurements in the layout. Is there any similar feature in the Cadence environment?

Thank you!

  • Tao247200

    Adding to this: I want to know the time-varying (under my stimuli) currents flowing through the branch wires in the power grid.

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