# This code is part of KQCircuits
# Copyright (C) 2021 IQM Finland Oy
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with this program. If not, see
# https://www.gnu.org/licenses/gpl-3.0.html.
#
# The software distribution should follow IQM trademark policy for open-source software
# (meetiqm.com/iqm-open-source-trademark-policy). IQM welcomes contributions to the code.
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from kqcircuits.elements.flip_chip_connectors.flip_chip_connector import FlipChipConnector
from kqcircuits.util.geometry_helper import circle_polygon
[docs]
class FlipChipConnectorDc(FlipChipConnector):
"""PCell declaration for an inter-chip dc connector.
.. MARKERS_FOR_PNG 0,0 0,15
"""
[docs]
def build(self):
ubm_shape = circle_polygon(self.ubm_diameter / 2, self.n)
self.cell.shapes(self.get_layer("underbump_metallization", 0)).insert(ubm_shape)
self.cell.shapes(self.get_layer("underbump_metallization", 1)).insert(ubm_shape)
avoidance_shape = circle_polygon(self.ubm_diameter / 2 + self.margin, self.n)
self.cell.shapes(self.get_layer("ground_grid_avoidance", 0)).insert(avoidance_shape)
self.cell.shapes(self.get_layer("ground_grid_avoidance", 1)).insert(avoidance_shape)
bump_shape = circle_polygon(self.bump_diameter / 2, self.n)
self.cell.shapes(self.get_layer("indium_bump", 0)).insert(bump_shape) # bottom In bump
self.cell.shapes(self.get_layer("indium_bump", 1)).insert(bump_shape) # top In bump