PyAEDT/Icepak: HighSide PCB radiation settings not applied

[emeusel5]

Hi,

I’m running into an issue in PyAEDT / Icepak when setting radiation parameters on a PCB imported with create_pcb_from_3dlayout.
Both LowSide and HighSide appear undernative_properties, and toggling Radiate=True works for both.
However, when I also change Surface Material, it is applied only to LowSide. The same code for HighSide shows no error, but the change does not take effect in Ansys.

pcb = ipk.modeler.user_defined_components["PCB1_1"]
props = pcb.native_properties

# ---- LowSide (works) ----
low = dict(props.get("LowSide", {}))
low["Radiate"] = True
low["Surface Material"] = "Plastics-infrared Opaque"
low["Radiate To"] = "All Objects"
props["LowSide"] = low

# ---- HighSide (no effect) ----
high = dict(props.get("HighSide", {}))
high["Radiate"] = True
high["Surface Material"] = "Plastics-infrared Opaque"
high["Radiate To"] = "All Objects"
props["HighSide"] = high

# write back
pcb.native_properties = props

print(pcb.native_properties["LowSide"])
print(pcb.native_properties["HighSide"])

Printed properties (after setting):

LowSide:  {'Radiate': True, 'Surface Material': 'Plastics-infrared Opaque', 'Radiate To': 'All Objects'}
HighSide: {'Radiate': True, 'Surface Material': 'Plastics-infrared Opaque', 'Radiate To': 'All Objects'}

So both dictionaries look correct, but only LowSide updates all settings in Icepak. On the HighSide, only Radiate=True takes effect, while the Surface Material is ignored.

How can I also apply Surface Material to the HighSide?

Thanks for any pointers or fixes!

[siva-krishnaswamy]

Hi @emeusel5 , I also noticed this at my end. I noticed that there is another way to update the components. Instead of loading the pcb as user defined component. Load PCB as Native component.

pcb_nat = ipk.native_components["PCB1"]
pcb_nat.set_low_side_radiation(enabled = True, surface_material="Plastics-infrared Opaque", radiate_to_ref_temperature=True)
pcb_nat.update()

Please try this at your end and let me know if it works

Regards,
Siva

[emeusel5]

Hi @siva-krishnaswamy , it worked.

Thank you very much!

Regards,
Elaine