Source code for gdsfactory.components.litho_steps
from __future__ import annotations
import gdsfactory as gf
from gdsfactory import components as pc
from gdsfactory.component import Component
from gdsfactory.typings import LayerSpec
[docs]
@gf.cell
def litho_steps(
line_widths: tuple[float, ...] = (1.0, 2.0, 4.0, 8.0, 16.0),
line_spacing: float = 10.0,
height: float = 100.0,
layer: LayerSpec = "WG",
) -> Component:
"""Positive + negative tone linewidth test.
used for lithography resolution test patterning
based on phidl
Args:
line_widths: in um.
line_spacing: in um.
height: in um.
layer: Specific layer to put the ruler geometry on.
"""
D = gf.Component()
height /= 2
T1 = pc.text(
text=f"{str(line_widths[-1])}", size=height, justify="center", layer=layer
)
D.add_ref(T1).rotate(90).movex(-height / 10)
R1 = pc.rectangle(size=(line_spacing, height), layer=layer)
D.add_ref(R1).movey(-height)
count = 0
for i in reversed(line_widths):
count += line_spacing + i
R2 = pc.rectangle(size=(i, height), layer=layer)
D.add_ref(R1).movex(count).movey(-height)
D.add_ref(R2).movex(count - i)
return D
if __name__ == "__main__":
c = litho_steps()
c.show(show_ports=True)