ContactHole

class picazzo3.electrical.contact.cell.ContactHole(*args, **kwargs)

Regular via to connect M1 (top_layer) to the silicide layer (bottom_layer) using a contact layer (via_layer)

Parameters:

cell_instances: _PCellInstanceDict, optional

name: optional

The unique name of the pcell

Views

Layout

A standard electrical via connect M1 (top_layer) to the silicide layer (bottom_layer) using a contact layer (via_layer).

The shape of each layer in the via is a regular polygon with a n_o_sides sides. and each layer element (top, bottom and via) is defined through the following properties:

• top_process
• top_purpose
• top_width

analogous properties are defined for the other layers.

All those propeties can be overriden but they are defaulting to the values found in TECH.VIAS.CONTACT_HOLE

Parameters:

bottom_process: ProcessLayer, optional

Process of the bottom layer.

bottom_purpose: PatternPurpose, optional

Purpose of the bottom layer.

bottom_width: float and number > 0, optional

Width of the bottom layer (2 * inner radius of the polygon)

top_process: ProcessLayer, optional

Process of the top layer.

top_purpose: PatternPurpose, optional

Purpose of the top layer.

top_width: float and number > 0, optional

Width of the top layer (2 * inner radius of the polygon)

via_process: ProcessLayer, optional

Process of the via layer.

via_purpose: PatternPurpose, optional

Purpose of the via layer.

via_width: float and number > 0, optional

Width of the via layer (2 * inner radius of the polygon)

view_name: str, optional

The name of the view

n_o_sides: int and number > 0, optional

Number of sides of the polygon used for the contact hole

grids_per_unit: locked

Number of grid cells per design unit

units_per_grid: locked

Ratio of grid cell and design unit

bottom_layer: locked

bottom_shape: locked

top_layer: locked

top_shape: locked

via_layer: locked

via_shape: locked

layers: locked

shapes: locked

grid: float and number > 0, locked

design grid. Extracted by default from TECH.METRICS.GRID

unit: float and number > 0, locked

design unit. Extracted by default from TECH.METRICS.UNIT

Examples

# Using the default contact hole.
from technologies import silicon_photonics
from ipkiss3 import all as i3
from picazzo3.electrical.contact import ContactHole

cell = ContactHole()
layout = cell.Layout()
layout.visualize()

from technologies import silicon_photonics
from ipkiss3 import all as i3
from picazzo3.electrical.contact import ContactHole

cell = ContactHole()
layout = cell.Layout(n_o_sides=8,
                     top_width=1.0,
                     bottom_width=0.8,
                     via_width=0.2)
layout.visualize()