Yuyu11131
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Hi all,
I have questions about how to understand the simulation results from Finesim for leakage power.
I ran the leakage power characterization for a cell. The results have the following items:
input_current_InputPinName= current_value from= t_start to= t_end input_voltage_InputPinName= voltage_value from= t_start to= t_end
supply_current_Vsubstrate= current_value from= t_start to= t_end supply_current_Vdd= current_value from= t_start to= t_end supply_current_Vgnd= current_value from= t_start to= t_end
supply_voltage_Vsubstrate=voltage_value from= t_start to= t_end supply_voltage_Vdd=voltage_value from= t_start to= t_end supply_voltage_Vgnd=voltage_value from= t_start to= t_end
I tried to compare the values from the above to the liberty file and found that Leakage power of a cell = supply_current_Vsubstrate * supply_voltage_Vsubstrate + supply_current_Vbody * supply_current_Vbody.
The equation gives the impression that the leakage power only relates to the supply pins (Vdd and Vsubtrate).
So my questions are: 1. Do the input current & current flow to ground pin contribute to the leakage current? 2. If yes to 1, how? is there any equation that I can follow? 3. If no to 1, then what are these two currents for?
Thank you very much!!
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