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fixing contact placement for gf180 in rom

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This commit is contained in:
SWalker
2023-10-31 23:24:21 -07:00
parent b279791762
commit 75f7a5847f
12 changed files with 232 additions and 192 deletions
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compiler/modules/rom_precharge_array.py
+10 -11
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@@ -17,24 +17,17 @@ class rom_precharge_array(design):
"""
An array of inverters to create the inverted address lines for the rom decoder
"""
def __init__(self, cols, name="", bitline_layer="m2", strap_spacing=None, strap_layer="m3", tap_direction="row"):
def __init__(self, cols, name="", bitline_layer="m2", strap_spacing=0, strap_layer="m3", tap_direction="row"):
self.cols = cols
self.strap_layer = strap_layer
self.bitline_layer = bitline_layer
self.tap_direction = tap_direction
self.strap_spacing = strap_spacing
if "li" in layer:
self.supply_layer = "li"
else:
self.supply_layer = "m1"
if strap_spacing != None:
self.strap_spacing = strap_spacing
else:
self.strap_spacing = 0
if strap_spacing != 0:
self.num_straps = ceil(self.cols / self.strap_spacing)
self.array_col_size = self.cols + self.num_straps
@@ -158,11 +151,17 @@ class rom_precharge_array(design):
self.add_segment_center(layer="poly", start=offset_start, end=offset_end)
self.add_segment_center(layer="poly", start=self.pmos_insts[-1].get_pin("G").center(), end=offset_end)
gate_y = self.pmos_insts[0].get_pin('G').cy()
start = vector( self.get_pin("gate").lx(), gate_y)
end = vector( self.get_pin("precharge_r").rx(), gate_y )
self.add_segment_center(layer="poly", start=start, end=end)
def extend_well(self):
self.well_offset = self.pmos.tap_offset
well_y = self.pmos_insts[0].get_pin("vdd").cy() - 0.5 * self.nwell_width
well_y = self.get_pin("vdd").cy() - 0.5 * self.nwell_width
well_y = self.get_pin("vdd").by() - self.nwell_enclose_active
well_ll = vector(0, well_y)
self.add_rect("nwell", well_ll, self.width , self.height - well_y)