LUCEDA IPKISS Tutorial 77：在版图一定范围内填充dummy

案例分享：在给定的Shape内填充dummy

所有代码如下：

from si_fab import all as pdk
from ipkiss3 import all as i3
from shapely.geometry import Polygon, MultiPolygon
import numpy as np
import matplotlib.pyplot as pltclass CellFilledWithContacts(i3.PCell):contact_size = i3.PositiveNumberProperty(default=1.5, doc="width and height of the contact box")contact_pitch = i3.PositiveNumberProperty(default=2, doc="contact pitch")class Layout(i3.LayoutView):def _generate_elements(self, elems):elems += i3.Boundary(layer=i3.TECH.PPLAYER.SI,shape=[(0, 0), (7.7, -23.7),(32.6, -23.7), (12.4, -38.4),(20.1, -62.1), (0, -47.4),(-20.1, -62.1), (-12.4, -38.4),(-32.6, -23.7), (-7.7, -23.7)])s = elems.size_info()polygons = [Polygon(el.shape) for el in elems]region = MultiPolygon(polygons).buffer(-2.0)plt.show()no_of_contacts_row = int((s.east - s.west - self.contact_pitch) / self.contact_pitch)no_of_contacts_col = int((s.north - s.south - self.contact_pitch) / self.contact_pitch)print('number of contacts in each row of along the whole cell =', no_of_contacts_row)print('number of contacts in each column of along the whole cell =', no_of_contacts_col)contact_regions = []# set the x and y coordinates for each contact via a for-loopfor cnt, i in enumerate(np.linspace(s.west, s.east, no_of_contacts_row)):for cn, j in enumerate(np.linspace(s.north, s.south, no_of_contacts_col)):contact = i3.Rectangle(layer=i3.TECH.PPLAYER.SI,center=(i, j),box_size=(self.contact_size, self.contact_size))contact_region = Polygon(contact.shape)contact_regions.append(contact_region)# only add the contacts when they are not in the cellif contact_region.intersects(region):elems += contactreturn elemsif __name__ == '__main__':lay = CellFilledWithContacts().Layout()lay.write_gdsii("demo.gds")

dummy的大小可以调节：

    contact_size = i3.PositiveNumberProperty(default=1.5, doc="width and height of the contact box")contact_pitch = i3.PositiveNumberProperty(default=2, doc="contact pitch")

可以通过：

shape=[(0, 0), (7.7, -23.7),(32.6, -23.7), (12.4, -38.4),(20.1, -62.1), (0, -47.4),(-20.1, -62.1), (-12.4, -38.4),(-32.6, -23.7), (-7.7, -23.7)]

来调节shape