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Don't widen too short wires either

This commit is contained in:
mrg 2020-04-16 11:02:54 -07:00
parent b347e3f7a8
commit d1319d633d
1 changed files with 6 additions and 3 deletions
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9
compiler/base/wire.py
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@ -83,7 +83,6 @@ class wire(wire_path):
return pitch return pitch
# create a 1x1 contact # create a 1x1 contact
def create_vias(self): def create_vias(self):
""" Add a via and corner square at every corner of the path.""" """ Add a via and corner square at every corner of the path."""
@ -113,7 +112,9 @@ class wire(wire_path):
# Horizontal wire segment # Horizontal wire segment
if pl[index][0] != pl[index + 1][0]: if pl[index][0] != pl[index + 1][0]:
line_length = pl[index + 1][0] - pl[index][0] line_length = pl[index + 1][0] - pl[index][0]
if abs(line_length) < self.pitch: # Make the wire wider to avoid via-to-via spacing problems
# But don't make it wider if it is shorter than one via
if abs(line_length) < self.pitch and abs(line_length) > self.horiz_layer_contact_width:
width = self.horiz_layer_contact_width width = self.horiz_layer_contact_width
else: else:
width = self.horiz_layer_width width = self.horiz_layer_width
@ -131,7 +132,9 @@ class wire(wire_path):
# Vertical wire segment # Vertical wire segment
elif pl[index][1] != pl[index + 1][1]: elif pl[index][1] != pl[index + 1][1]:
line_length = pl[index + 1][1] - pl[index][1] line_length = pl[index + 1][1] - pl[index][1]
if abs(line_length) < self.pitch: # Make the wire wider to avoid via-to-via spacing problems
# But don't make it wider if it is shorter than one via
if abs(line_length) < self.pitch and abs(line_length) > self.vert_layer_contact_width:
width = self.vert_layer_contact_width width = self.vert_layer_contact_width
else: else:
width = self.vert_layer_width width = self.vert_layer_width