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Add li_stack contact to ptx and pgate if it exists.

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This commit is contained in:
mrg
2020-03-23 16:55:38 -07:00
parent f491876a5a
commit e9d0db44fd
2 changed files with 41 additions and 43 deletions
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compiler/pgates/pgate.py
+19 -8
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@@ -64,7 +64,7 @@ class pgate(design.design):
width=source_pin.width())
def route_input_gate(self, pmos_inst, nmos_inst, ypos, name, position="left"):
"""
"""
Route the input gate to the left side of the cell for access.
Position specifies to place the contact the left, center, or
right of gate.
@@ -107,8 +107,12 @@ class pgate(design.design):
else:
debug.error("Invalid contact placement option.", -1)
v=self.add_via_center(layers=self.poly_stack,
offset=contact_offset)
if hasattr(self, "li_stack"):
self.add_via_center(layers=self.li_stack,
offset=contact_offset)
self.add_via_center(layers=self.poly_stack,
offset=contact_offset)
self.add_layout_pin_rect_center(text=name,
layer="m1",
@@ -182,13 +186,17 @@ class pgate(design.design):
contact_offset = vector(contact_xoffset, contact_yoffset)
# Offset by half a contact in x and y
contact_offset += vector(0.5 * pmos.active_contact.first_layer_width,
0.5 * pmos.active_contact.first_layer_height)
0.5 * pmos.active_contact.first_layer_height)
self.nwell_contact = self.add_via_center(layers=layer_stack,
offset=contact_offset,
implant_type="n",
well_type="n")
if hasattr(self, "li_stack"):
self.add_via_center(layers=self.li_stack,
offset=contact_offset)
self.add_rect_center(layer="m1",
offset=contact_offset + vector(0, 0.5 * (self.height-contact_offset.y)),
offset=contact_offset + vector(0, 0.5 * (self.height - contact_offset.y)),
width=self.nwell_contact.mod.second_layer_width,
height=self.height - contact_offset.y)
@@ -221,8 +229,6 @@ class pgate(design.design):
layer_stack = self.active_stack
pwell_position = vector(0, -0.5 * self.m1_width)
# To the right a spacing away from the nmos right active edge
contact_xoffset = nmos_pos.x + nmos.active_width \
+ self.active_space
@@ -240,8 +246,13 @@ class pgate(design.design):
offset=contact_offset,
implant_type="p",
well_type="p")
if hasattr(self, "li_stack"):
self.add_via_center(layers=self.li_stack,
offset=contact_offset)
self.add_rect_center(layer="m1",
offset=contact_offset.scale(1,0.5),
offset=contact_offset.scale(1, 0.5),
width=self.pwell_contact.mod.second_layer_width,
height=contact_offset.y)