Edit a layer stackup in a layout stackup

This page shows how edit a layer in the current layer stackup.

from pyedb import Edb
from pyedb.generic.general_methods import generate_unique_folder_name
import pyedb.misc.downloads as downloads

temp_folder = generate_unique_folder_name()
targetfile = downloads.download_file("edb/ANSYS-HSD_V1.aedb", destination=temp_folder)
edbapp = Edb(edbpath=targetfile, edbversion="2024.2")

# plot layer stackup in Matplotlib
edbapp.stackup.plot()
# change top layer thickness to 40um
edbapp.stackup.signal_layers["1_Top"].thickness = 40e-6
print(f"Top layer thickness update {edbapp.stackup.signal_layers['1_Top'].thickness}")
edbapp.save()
edbapp.close()

# retrieve list of signal layer names
signal_layers = list(edbapp.stackup.signal_layers.keys())

# select top layer
top_layer = edbapp.stackup.signal_layers[signal_layers[0]]

# get stackup total thickness
layout_stats = edbapp.get_statistics()
layout_stats.stackup_thickness

# set thickness of all signal layers to ``20um``
for layer_name, layer in edbapp.stackup.signal_layers.items():
    layer.thickness = "20um"

edbapp.materials.add_material(
    name="MyMaterial", permittivity=4.35, dielectric_loss_tangent=2e-4
)
edbapp.materials.add_material(name="MyMetal", conductivity=1e7)
for layer in list(edbapp.stackup.dielectric_layers.values()):
    layer.material = "MyMaterial"
for layer in list(edbapp.stackup.signal_layers.values()):
    layer.material = "MyMetal"
edbapp.materials.add_material(
    name="SolderMask", permittivity=3.8, dielectric_loss_tangent=1e-3
)
edbapp.stackup.add_layer(
    layer_name="Solder_mask",
    base_layer="1_Top",
    thickness="200um",
    material="SolderMask",
)