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Import Padstack Definitions#
This example shows how to import padstack definitions. This includes
Download an example board
Create a config file with hole information
Create a config file with pad and anti-pad information
Perform imports and define constants#
Perform required imports.
[1]:
import json
import toml
from pathlib import Path
import tempfile
from IPython.display import display
from ansys.aedt.core.examples.downloads import download_file
import pandas as pd
from pyedb import Edb
Define constants.
[2]:
AEDT_VERSION = "2025.1"
Download the example PCB data.
[3]:
temp_folder = tempfile.TemporaryDirectory(suffix=".ansys").name
file_edb = download_file(source="edb/ANSYS-HSD_V1.aedb", local_path=temp_folder)
Load example layout.#
[4]:
edbapp = Edb(file_edb, edbversion=AEDT_VERSION)
PyAEDT INFO: Star initializing Edb 03:56:18.146916
PyAEDT INFO: Logger is initialized in EDB.
PyAEDT INFO: legacy v0.52.0
PyAEDT INFO: Python version 3.10.11 (tags/v3.10.11:7d4cc5a, Apr 5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)]
PyAEDT INFO: Database ANSYS-HSD_V1.aedb Opened in 2025.1
PyAEDT INFO: Cell main Opened
PyAEDT INFO: Builder was initialized.
PyAEDT INFO: EDB initialized.Time lapse 0:00:10.210635
Create a config file with hole information#
Keywords
name. Name of the padstack definition.
hole_plating_thickness. Hole plating thickness.
hole_range. Supported types are ‘through’, ‘begin_on_upper_pad’, ‘end_on_lower_pad’, ‘upper_pad_to_lower_pad’.
hole_parameters.
shape. Supported types are ‘circle’, ‘square’, ‘rectangle’.
Other parameters are shape dependent.
When shape is ‘circle’, supported parameter si ‘diameter’.
When shape is ‘square’, supported parameter is ‘size’.
When shape is ‘rectangle’, supported parameters are ‘x_size’, ‘y_size’.
[5]:
cfg = dict()
cfg["padstacks"] = {}
cfg["padstacks"]["definitions"] = [
{
"name": "v35h15",
"hole_plating_thickness": "25um",
"material": "copper",
"hole_range": "through",
"hole_parameters": {
"shape": "circle",
"diameter": "0.15mm",
},
}
]
[6]:
df = pd.DataFrame(data=cfg["padstacks"]["definitions"])
display(df)
| name | hole_plating_thickness | material | hole_range | hole_parameters | |
|---|---|---|---|---|---|
| 0 | v35h15 | 25um | copper | through | {'shape': 'circle', 'diameter': '0.15mm'} |
[7]:
cfg_file_path = Path(temp_folder) / "cfg.json"
with open(cfg_file_path, "w") as f:
json.dump(cfg, f, indent=4, ensure_ascii=False)
Load config file
[8]:
edbapp.configuration.load(cfg_file_path, apply_file=True)
PyAEDT INFO: Updating boundaries finished. Time lapse 0:00:00.015625
PyAEDT INFO: Updating nets finished. Time lapse 0:00:00
PyAEDT INFO: Updating components finished. Time lapse 0:00:00
PyAEDT INFO: Creating pin groups finished. Time lapse 0:00:00
PyAEDT INFO: Placing sources finished. Time lapse 0:00:00
PyAEDT INFO: Creating setups finished. Time lapse 0:00:00
PyAEDT INFO: Updating stackup finished. Time lapse 0:00:02.656488
PyAEDT INFO: Applying padstacks finished. Time lapse 0:00:00.015681
PyAEDT INFO: Applying S-parameters finished. Time lapse 0:00:00
PyAEDT INFO: Assigning Spice models finished. Time lapse 0:00:00
PyAEDT INFO: Applying package definitions finished. Time lapse 0:00:00
PyAEDT INFO: Placing ports finished. Time lapse 0:00:00.468653
PyAEDT INFO: Placing probes finished. Time lapse 0:00:00
[8]:
<pyedb.configuration.cfg_data.CfgData at 0x241af4511b0>
Create a config file with pad information#
Keywords
name. Name of the padstack definition.
pad_parameters.
regular_pad. List of pad definition per layer.
layer_name. Name of the layer.
shape. Supported types are ‘circle’, ‘square’, ‘rectangle’, ‘oval’, ‘bullet’.
Other parameters are shape dependent.
When shape is ‘circle’, supported parameter si ‘diameter’.
When shape is ‘square’, supported parameter is ‘size’.
When shape is ‘rectangle’, supported parameters are ‘x_size’, ‘y_size’.
When shape is ‘oval’, supported parameters are ‘x_size’, ‘y_size’, ‘corner_radius’.
When shape is ‘bullet’, supported parameters are ‘x_size’, ‘y_size’, ‘corner_radius’.
[9]:
cfg = dict()
cfg["padstacks"] = {}
cfg["padstacks"]["definitions"] = [
{
"name": "v35h15",
"pad_parameters": {
"regular_pad": [
{
"layer_name": "1_Top",
"shape": "circle",
"offset_x": "0.1mm",
"offset_y": "0.1mm",
"rotation": "0",
"diameter": "0.5mm",
},
{
"layer_name": "Inner1(GND1)",
"shape": "square",
"offset_x": "0.1mm",
"offset_y": "0.1mm",
"rotation": "45deg",
"size": "0.5mm",
},
],
"anti_pad": [{"layer_name": "1_Top", "shape": "circle", "diameter": "1mm"}],
},
}
]
[10]:
cfg_file_path = Path(temp_folder) / "cfg.json"
with open(cfg_file_path, "w") as f:
json.dump(cfg, f, indent=4, ensure_ascii=False)
Equivalent toml file looks like below
[11]:
toml_string = toml.dumps(cfg)
print(toml_string)
[padstacks]
[[padstacks.definitions]]
name = "v35h15"
[padstacks.definitions.pad_parameters]
[[padstacks.definitions.pad_parameters.regular_pad]]
layer_name = "1_Top"
shape = "circle"
offset_x = "0.1mm"
offset_y = "0.1mm"
rotation = "0"
diameter = "0.5mm"
[[padstacks.definitions.pad_parameters.regular_pad]]
layer_name = "Inner1(GND1)"
shape = "square"
offset_x = "0.1mm"
offset_y = "0.1mm"
rotation = "45deg"
size = "0.5mm"
[[padstacks.definitions.pad_parameters.anti_pad]]
layer_name = "1_Top"
shape = "circle"
diameter = "1mm"
Load config file
[12]:
edbapp.configuration.load(cfg_file_path, apply_file=True)
PyAEDT INFO: Updating boundaries finished. Time lapse 0:00:00
PyAEDT INFO: Updating nets finished. Time lapse 0:00:00
PyAEDT INFO: Updating components finished. Time lapse 0:00:00
PyAEDT INFO: Creating pin groups finished. Time lapse 0:00:00
PyAEDT INFO: Placing sources finished. Time lapse 0:00:00
PyAEDT INFO: Creating setups finished. Time lapse 0:00:00
PyAEDT INFO: Updating stackup finished. Time lapse 0:00:02.625209
PyAEDT INFO: Applying padstacks finished. Time lapse 0:00:00
PyAEDT INFO: Applying S-parameters finished. Time lapse 0:00:00
PyAEDT INFO: Assigning Spice models finished. Time lapse 0:00:00
PyAEDT INFO: Applying package definitions finished. Time lapse 0:00:00
PyAEDT INFO: Placing ports finished. Time lapse 0:00:00.328151
PyAEDT INFO: Placing probes finished. Time lapse 0:00:00
[12]:
<pyedb.configuration.cfg_data.CfgData at 0x28261efbbe0>
Save and close Edb#
The temporary folder will be deleted once the execution of this script is finished. Replace edbapp.save() with edbapp.save_as(“C:/example.aedb”) to keep the example project.
[13]:
edbapp.save()
edbapp.close()
PyAEDT INFO: EDB file save time: 15.56ms
PyAEDT INFO: EDB file release time: 15.57ms
[13]:
True
Download this example
Download this example as a Jupyter Notebook or as a Python script.