Icepak: Importing a PCB and its components via IDF and EDB

This example shows how to import a PCB and its components using IDF files (.ldb/.bdf). The .emn/.emp combination can also be used in a similar way.

Perform required imports

Perform required imports including the operating system, Ansys PyAEDT packages.

# Generic Python packages

import os

# PyAEDT Packages
import pyaedt
from pyaedt import Icepak
from pyaedt import Desktop
from pyaedt import Hfss3dLayout
from pyaedt.modules.Boundary import BoundaryObject

Set AEDT version

Set AEDT version.

aedt_version = "2024.1"

Set non-graphical mode

Set non-graphical mode. You can set non_graphical either to True or False.

non_graphical = False

Download and open project

Download the project, open it, and save it to the temporary folder.

temp_folder = pyaedt.generate_unique_folder_name()

ipk = pyaedt.Icepak(projectname=os.path.join(temp_folder, "Icepak_ECAD_Import.aedt"),
                    specified_version=aedt_version,
                    new_desktop_session=True,
                    non_graphical=non_graphical
                    )

ipk.autosave_disable()                                                    # Saves the project

C:\actions-runner\_work\_tool\Python\3.10.9\x64\lib\subprocess.py:1072: ResourceWarning: subprocess 4672 is still running
  _warn("subprocess %s is still running" % self.pid,
C:\actions-runner\_work\pyaedt\pyaedt\testenv\lib\site-packages\pyaedt\generic\settings.py:383: ResourceWarning: unclosed file <_io.TextIOWrapper name='D:\\Temp\\pyaedt_ansys.log' mode='a' encoding='cp1252'>
  self._logger = val

True

Import the IDF files

Sample *.bdf and *.ldf files are presented here.

Imports the idf files with several filtering options including caps, resistors, inductors, power, size, … There are also options for the PCB creation (number o flayers, copper percentages, layer sizes). In this example, the default values are used for the PCB. The imported PCB here will be deleted later and replaced by a PCB that has the trace information for higher accuracy.

def_path = pyaedt.downloads.download_file('icepak/Icepak_ECAD_Import/A1_uprev.aedb','edb.def',temp_folder)
board_path = pyaedt.downloads.download_file('icepak/Icepak_ECAD_Import/','A1.bdf',temp_folder)
library_path = pyaedt.downloads.download_file('icepak/Icepak_ECAD_Import/','A1.ldf',temp_folder)

ipk.import_idf(board_path, library_path=None, control_path=None,
               filter_cap=False, filter_ind=False, filter_res=False,
               filter_height_under=None, filter_height_exclude_2d=False,
               power_under=None, create_filtered_as_non_model=False,
               high_surface_thick='0.07mm', low_surface_thick='0.07mm',
               internal_thick='0.07mm', internal_layer_number=2,
               high_surface_coverage=30, low_surface_coverage=30,
               internal_layer_coverage=30, trace_material='Cu-Pure',
               substrate_material='FR-4', create_board=True,
               model_board_as_rect=False, model_device_as_rect=True,
               cutoff_height='5mm', component_lib='')

True

Fit to scale, save the project

ipk.modeler.fit_all()    # scales to fit all objects in AEDT
ipk.save_project()       # saves the project

True

Add an HFSS 3D Layout design with the layout information of the PCB

Layout_name = 'A1_uprev'          # 3D layout name available for import, the extension of .aedb should not be listed here

hfss3dLO = Hfss3dLayout('Icepak_ECAD_Import', 'PCB_temp')      # adding a dummy HFSS 3D layout to the current project

#edb_full_path = os.path.join(os.getcwd(), Layout_name+'.aedb\edb.def')   # path to the EDB file
hfss3dLO.import_edb(def_path)  # importing the EDB file
hfss3dLO.save_project()                                                  # save the new project so files are stored in the path

ipk.delete_design(name='PCB_temp', fallback_design=None)                 # deleting the dummy layout from the original project

# This part creates a 3D component PCB in Icepak from the imported EDB file
# 1 watt is assigned to the PCB as power input

component_name = "PCB_ECAD"

odb_path = os.path.join(temp_folder, 'icepak/Icepak_ECAD_Import/'+Layout_name+'.aedt')
ipk.create_pcb_from_3dlayout(
    component_name, odb_path, Layout_name, resolution=2, extenttype="Polygon", outlinepolygon='poly_0',
    custom_x_resolution=None, custom_y_resolution=None, power_in=1)

C:\actions-runner\_work\pyaedt\pyaedt\testenv\lib\site-packages\pyaedt\icepak.py:2556: DeprecationWarning: ``extenttype`` was deprecated in 0.6.43. Use ``extent_type`` instead.
  warnings.warn(
C:\actions-runner\_work\pyaedt\pyaedt\testenv\lib\site-packages\pyaedt\icepak.py:2563: DeprecationWarning: ``outlinepolygon`` was deprecated in 0.6.43. Use ``outline_polygon`` instead.
  warnings.warn(

<pyaedt.modules.Boundary.NativeComponentObject object at 0x000002798AFE2CE0>

Delete PCB objects

Delete the PCB object from IDF import.

ipk.modeler.delete_objects_containing("IDF_BoardOutline", False)

True

Compute power budget

# Creates a setup to be able to calculate the power
ipk.create_setup("setup1")

power_budget, total = ipk.post.power_budget("W")
print(total)

7.0

Release AEDT

Release AEDT.

ipk.release_desktop(True, True)

True