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Convert all contacts to use the sram_factory

This commit is contained in:
Matt Guthaus 2019-01-16 16:56:06 -08:00
parent 5192a01f2d
commit 91636be642
7 changed files with 47 additions and 38 deletions
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18
compiler/base/contact.py
View File

@ -16,7 +16,9 @@ class contact(hierarchy_design.hierarchy_design):
hierarchy as the contact.
"""
def __init__(self, layer_stack, dimensions=[1,1], implant_type=None, well_type=None):
def __init__(self, layer_stack, dimensions=[1,1], implant_type=None, well_type=None, name=""):
# This will ignore the name parameter since we can guarantee a unique name here
if implant_type or well_type:
name = "{0}_{1}_{2}_{3}x{4}_{5}{6}".format(layer_stack[0],
layer_stack[1],
@ -164,13 +166,13 @@ class contact(hierarchy_design.hierarchy_design):
""" Get total power of a module """
return self.return_power()
from sram_factory import factory
# This is not instantiated and used for calculations only.
# These are static 1x1 contacts to reuse in all the design modules.
well = contact(layer_stack=("active", "contact", "metal1"))
active = contact(layer_stack=("active", "contact", "poly"))
poly = contact(layer_stack=("poly", "contact", "metal1"))
m1m2 = contact(layer_stack=("metal1", "via1", "metal2"))
m2m3 = contact(layer_stack=("metal2", "via2", "metal3"))
m3m4 = contact(layer_stack=("metal3", "via3", "metal4"))
well = factory.create(module_type="contact", layer_stack=("active", "contact", "metal1"))
active = factory.create(module_type="contact", layer_stack=("active", "contact", "poly"))
poly = factory.create(module_type="contact", layer_stack=("poly", "contact", "metal1"))
m1m2 = factory.create(module_type="contact", layer_stack=("metal1", "via1", "metal2"))
m2m3 = factory.create(module_type="contact", layer_stack=("metal2", "via2", "metal3"))
m3m4 = factory.create(module_type="contact", layer_stack=("metal3", "via3", "metal4"))

28
compiler/base/hierarchy_layout.py
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@ -378,11 +378,12 @@ class layout():
def add_via(self, layers, offset, size=[1,1], mirror="R0", rotate=0, implant_type=None, well_type=None):
""" Add a three layer via structure. """
import contact
via = contact.contact(layer_stack=layers,
dimensions=size,
implant_type=implant_type,
well_type=well_type)
from sram_factory import factory
via = factory.create(module_type="contact",
layer_stack=layers,
dimensions=size,
implant_type=implant_type,
well_type=well_type)
self.add_mod(via)
inst=self.add_inst(name=via.name,
mod=via,
@ -395,11 +396,12 @@ class layout():
def add_via_center(self, layers, offset, size=[1,1], mirror="R0", rotate=0, implant_type=None, well_type=None):
""" Add a three layer via structure by the center coordinate accounting for mirroring and rotation. """
import contact
via = contact.contact(layer_stack=layers,
dimensions=size,
implant_type=implant_type,
well_type=well_type)
from sram_factory import factory
via = factory.create(module_type="contact",
layer_stack=layers,
dimensions=size,
implant_type=implant_type,
well_type=well_type)
height = via.height
width = via.width
debug.check(mirror=="R0","Use rotate to rotate vias instead of mirror.")
@ -1039,9 +1041,11 @@ class layout():
# Find the number of vias for this pitch
self.supply_vias = 1
import contact
from sram_factory import factory
while True:
c=contact.contact(("metal1","via1","metal2"), (self.supply_vias, self.supply_vias))
c=factory.create(module_type="contact",
layer_stack=("metal1","via1","metal2"),
dimensions=(self.supply_vias, self.supply_vias))
if c.second_layer_width < self.supply_rail_width and c.second_layer_height < self.supply_rail_width:
self.supply_vias += 1
else:

6
compiler/base/route.py
View File

@ -1,10 +1,10 @@
from tech import drc
import debug
from design import design
from contact import contact
from itertools import tee
from vector import vector
from vector3d import vector3d
from sram_factory import factory
class route(design):
"""
@ -45,7 +45,9 @@ class route(design):
self.horiz_layer_width = drc("minwidth_{0}".format(self.horiz_layer_name))
# offset this by 1/2 the via size
self.c=contact(self.layer_stack, (self.num_vias, self.num_vias))
self.c=factory.create(module_type="contact",
layer_stack=self.layer_stack,
dimensions=(self.num_vias, self.num_vias))
def create_wires(self):

11
compiler/base/wire.py
View File

@ -1,7 +1,7 @@
from tech import drc
import debug
from contact import contact
from path import path
from sram_factory import factory
class wire(path):
"""
@ -37,15 +37,18 @@ class wire(path):
self.horiz_layer_name = horiz_layer
self.horiz_layer_width = drc("minwidth_{0}".format(horiz_layer))
via_connect = contact(self.layer_stack,
(1, 1))
via_connect = factory.create(module_type="contact",
layer_stack=self.layer_stack,
dimensions=(1, 1))
self.node_to_node = [drc("minwidth_" + str(self.horiz_layer_name)) + via_connect.width,
drc("minwidth_" + str(self.horiz_layer_name)) + via_connect.height]
# create a 1x1 contact
def create_vias(self):
""" Add a via and corner square at every corner of the path."""
self.c=contact(self.layer_stack, (1, 1))
self.c=factory.create(module_type="contact",
layer_stack=self.layer_stack,
dimensions=(1, 1))
c_width = self.c.width
c_height = self.c.height

1
compiler/options.py
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@ -82,6 +82,7 @@ class options(optparse.Values):
dff_array = "dff_array"
dff = "dff"
precharge_array = "precharge_array"
ptx = "ptx"
replica_bitcell = "replica_bitcell"
replica_bitline = "replica_bitline"
sense_amp_array = "sense_amp_array"

14
compiler/pgates/pnor2.py
View File

@ -1,9 +1,9 @@
import contact
import pgate
import debug
from tech import drc, parameter, spice
from vector import vector
from globals import OPTS
import contact
from sram_factory import factory
class pnor2(pgate.pgate):
@ -72,15 +72,11 @@ class pnor2(pgate.pgate):
def setup_layout_constants(self):
""" Pre-compute some handy layout parameters. """
poly_contact = contact.contact(("poly","contact","metal1"))
m1m2_via = contact.contact(("metal1","via1","metal2"))
m2m3_via = contact.contact(("metal2","via2","metal3"))
# metal spacing to allow contacts on any layer
self.input_spacing = max(self.poly_space + poly_contact.first_layer_width,
self.m1_space + m1m2_via.first_layer_width,
self.m2_space + m2m3_via.first_layer_width,
self.m3_space + m2m3_via.second_layer_width)
self.input_spacing = max(self.poly_space + contact.poly.first_layer_width,
self.m1_space + contact.m1m2.first_layer_width,
self.m2_space + contact.m2m3.first_layer_width,
self.m3_space + contact.m2m3.second_layer_width)
# Compute the other pmos2 location, but determining offset to overlap the
# source and drain pins

7
compiler/pgates/ptx.py
View File

@ -2,9 +2,9 @@ import design
import debug
from tech import drc, spice
from vector import vector
from contact import contact
from globals import OPTS
import path
from sram_factory import factory
class ptx(design.design):
"""
@ -97,8 +97,9 @@ class ptx(design.design):
# This is not actually instantiated but used for calculations
self.active_contact = contact(layer_stack=("active", "contact", "metal1"),
dimensions=(1, self.num_contacts))
self.active_contact = factory.create(module_type="contact",
layer_stack=("active", "contact", "metal1"),
dimensions=(1, self.num_contacts))
# The contacted poly pitch (or uncontacted in an odd technology)