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

Import the required packages#

[1]:
import json
from pathlib import Path
import tempfile

from IPython.display import display
from ansys.aedt.core.downloads import download_file
import pandas as pd

from pyedb import Edb

AEDT_VERSION = "2024.2"

Download the example PCB data.

[2]:
temp_folder = tempfile.TemporaryDirectory(suffix=".ansys").name
file_edb = download_file(source="edb/ANSYS-HSD_V1.aedb", destination=temp_folder)

Load example layout.#

[3]:
edbapp = Edb(file_edb, edbversion=AEDT_VERSION)
PyAEDT INFO: Logger is initialized in EDB.
PyAEDT INFO: legacy v0.31.0
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 2024.2
PyAEDT INFO: Cell main Opened
PyAEDT INFO: Builder was initialized.
PyAEDT INFO: EDB initialized.

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’.

[4]:
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",
        },
    }
]
[5]:
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'}
[6]:
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

[7]:
edbapp.configuration.load(cfg_file_path, apply_file=True)
[7]:
<pyedb.configuration.cfg_data.CfgData at 0x1941666d270>

Check layout

[8]:
pdef = edbapp.padstacks.definitions["v35h15"]
display(pdef.hole_plating_thickness)
display(pd.DataFrame([pdef.hole_parameters]))
2.500005000009999e-05
shape diameter offset_x offset_y rotation
0 circle 0.15mm 0 0 0

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]:
df = pd.DataFrame(data=cfg["padstacks"]["definitions"][0]["pad_parameters"]["regular_pad"])
display(df)
layer_name shape offset_x offset_y rotation diameter size
0 1_Top circle 0.1mm 0.1mm 0 0.5mm NaN
1 Inner1(GND1) square 0.1mm 0.1mm 45deg NaN 0.5mm
[11]:
df = pd.DataFrame(data=cfg["padstacks"]["definitions"][0]["pad_parameters"]["anti_pad"])
display(df)
layer_name shape diameter
0 1_Top circle 1mm
[12]:
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

[13]:
edbapp.configuration.load(cfg_file_path, apply_file=True)
[13]:
<pyedb.configuration.cfg_data.CfgData at 0x1941666cee0>

Check layout

[14]:
pdef = edbapp.padstacks.definitions["v35h15"]
[15]:
display(pd.DataFrame(pdef.pad_parameters["regular_pad"]))
layer_name shape offset_x offset_y rotation diameter size
0 1_Top circle 0.1mm 0.1mm 0 0.5mm NaN
1 Inner1(GND1) square 0.1mm 0.1mm 0.785398163397448 NaN 0.5mm
2 Inner2(PWR1) circle 0 0 0 0.3499993mm NaN
3 Inner3(Sig1) circle 0 0 0 0.3499993mm NaN
4 Inner4(Sig2) circle 0 0 0 0.3499993mm NaN
5 Inner5(PWR2) circle 0 0 0 0.3499993mm NaN
6 Inner6(GND2) circle 0 0 0 0.3499993mm NaN
7 16_Bottom circle 0 0 0 0.3499993mm NaN
[16]:
display(pd.DataFrame(pdef.pad_parameters["anti_pad"]))
layer_name shape offset_x offset_y rotation diameter
0 1_Top circle 0 0 0 1mm
1 Inner1(GND1) no_geometry 0 0 0 NaN
2 Inner2(PWR1) no_geometry 0 0 0 NaN
3 Inner3(Sig1) no_geometry 0 0 0 NaN
4 Inner4(Sig2) no_geometry 0 0 0 NaN
5 Inner5(PWR2) no_geometry 0 0 0 NaN
6 Inner6(GND2) no_geometry 0 0 0 NaN
7 16_Bottom no_geometry 0 0 0 NaN

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.

[17]:
edbapp.save()
edbapp.close()
[17]:
True