def contact(
size: Tuple[float, float] = (11.0, 11.0),
layers: Tuple[Layer, ...] = (LAYER.M1, LAYER.M2, LAYER.M3),
vias: Optional[Tuple[Optional[ComponentOrFactory], ...]] = (via1, via2),
layer_port: Optional[Layer] = None,
) -> Component:
"""Rectangular contact
Args:
size: of the layers
layers: layers on which to draw rectangles
vias: vias to use to fill the rectangles
layer_port: if None asumes port is on the last layer
"""
width, height = size
a = width / 2
b = height / 2
layer_port = layer_port or layers[-1]
c = Component()
c.height = height
c.info.size = (float(size[0]), float(size[1]))
c.info.layer = layer_port
for layer in layers:
ref = c << compass(size=(width, height), layer=layer)
if layer == layer_port:
c.add_ports(ref.ports)
vias = vias or []
for via in vias:
if via is not None:
via = via() if callable(via) else via
w, h = via.info["size"]
g = via.info["enclosure"]
pitch_x, pitch_y = via.info["spacing"]
nb_vias_x = (width - w - 2 * g) / pitch_x + 1
nb_vias_y = (height - h - 2 * g) / pitch_y + 1
nb_vias_x = int(floor(nb_vias_x)) or 1
nb_vias_y = int(floor(nb_vias_y)) or 1
ref = c.add_array(
via, columns=nb_vias_x, rows=nb_vias_y, spacing=(pitch_x, pitch_y)
)
cw = (width - (nb_vias_x - 1) * pitch_x - w) / 2
ch = (height - (nb_vias_y - 1) * pitch_y - h) / 2
x0 = -a + cw + w / 2
y0 = -b + ch + h / 2
ref.move((x0, y0))
return c
def contact(
size: Tuple[float, float] = (11.0, 11.0),
layers: Tuple[Layer, ...] = (LAYER.M1, LAYER.M2, LAYER.M3),
vias: Optional[Tuple[Optional[ComponentOrFactory], ...]] = (via1, via2),
layer_port: Optional[Layer] = None,
) -> Component:
"""Rectangular via array stack
You can use it to connect different metal layers or metals to silicon.
You can use the naming convention contact_layerSource_layerDestination
Via array / stack name is more common for contacting metal while
contact is used for contacting silicon
http://www.vlsi-expert.com/2017/12/vias.html
Args:
size: of the layers
layers: layers on which to draw rectangles
vias: vias to use to fill the rectangles
layer_port: if None asumes port is on the last layer
"""
width, height = size
a = width / 2
b = height / 2
layer_port = layer_port or layers[-1]
c = Component()
c.height = height
c.info.size = (float(size[0]), float(size[1]))
c.info.layer = layer_port
for layer in layers:
ref = c << compass(size=(width, height), layer=layer)
if layer == layer_port:
c.add_ports(ref.ports)
vias = vias or []
for via in vias:
if via is not None:
via = via() if callable(via) else via
w, h = via.info["size"]
g = via.info["enclosure"]
pitch_x, pitch_y = via.info["spacing"]
nb_vias_x = (width - w - 2 * g) / pitch_x + 1
nb_vias_y = (height - h - 2 * g) / pitch_y + 1
nb_vias_x = int(floor(nb_vias_x)) or 1
nb_vias_y = int(floor(nb_vias_y)) or 1
ref = c.add_array(via,
columns=nb_vias_x,
rows=nb_vias_y,
spacing=(pitch_x, pitch_y))
cw = (width - (nb_vias_x - 1) * pitch_x - w) / 2
ch = (height - (nb_vias_y - 1) * pitch_y - h) / 2
x0 = -a + cw + w / 2
y0 = -b + ch + h / 2
ref.move((x0, y0))
return c
