It is not possible to zero out the package parasitics in the IBIS file. If you do that, HyperLynx will use its own default value for those parasitics. You have two possible workarounds
1) Set Lpkg and Cpkg in the IBIS file such that:
- Delay = SQRT (L*C) is small enough to have minimal impact on the simulation.
If you make it too small, this will result in a small timestep which will slow down
- Z = SQRT (L/C) matches your line impedanc
then Cpkg and Lpkg will have minimal impact on your simulation
2) Force HyperLynx to run the simulation in Eldo/ADMS. When you invoke the simulation, a dialog will come up giving you the opportunity to edit the netlist. Just delete the parastic Lpkg and Cpkg (they are represented by a transmission line) from the netlist and run the simulation.
I see that you opened a Service Request about this issue, so let's continue this discussion by email. If anybody else has questions about this, please let me know.
Also be aware that your discrete R,L,C components have their own parasitics that you need to set to minimum.