March 3, 2022 at 10:25 amLasseholSubscriber
I get this error when trying to perform the Impedance Scan simulation. As far as I know, I have ground and shield planes in the OBD++ import. What does that error mean and how to fix it?March 9, 2022 at 12:57 pmPraneethAnsys Employee
Did you cross check your imported model in SIwave with the ODB++ file?
Were you able to see all the layers and the import was successful?
Please check once.
All the very best Praneeth.
November 22, 2022 at 4:22 pmjorgen.abrahamsenSubscriber
I am seeing the same error in Siwave, even though I belive there is no error in the stackup. I have imported the same design into Electronics Workbench, and there I am not seeing an error. There are two layers out of 6 where the VSS fill is > 90%, so they should automatically be detected as planes. VSS is identified as a power/ground net.
In addition, for some types of simulations (SYZ) I get the following error:
Metal layer "L05" is sitting in an air bubble; please change surrounding dielectric material using the Layer Stack Editor
I have tried evrything I can think of to resolve this, no edit I make to the stackup has any effect. The surrounding layers are defined exactly as the other dielectric layers in the design, and I am not getting errors for those layers.Viewing 2 reply threads
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