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Ring_NAND2.py
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Ring_NAND2.py
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# $autorun
# -*- coding: utf-8 -*-
"""
@author: Ashkan
Email:[email protected]
"""
import pya
class Ring_NAND2(pya.PCellDeclarationHelper):
"""
The PCell declaration for the Ring_NAND2.
"""
def __init__(self):
# Important: initialize the super class
super(Ring_NAND2, self).__init__()
# declare the parameters
self.param("n_d", self.TypeInt, "Number of Drive Fingers", default = 1)
self.param("l_d", self.TypeDouble, "Drive Length", default = 2.5)
self.param("l_l", self.TypeDouble, "Load Length", default = 2.5)
self.param("r", self.TypeDouble, "Ratio", default = 1)
self.param("o", self.TypeDouble, "Gate Overlap", default = 5)
self.param("fw", self.TypeDouble, "Finger Width", default = 3.5)
self.param("s", self.TypeDouble, "Finger Separation", default = 2.5)
self.param("via", self.TypeDouble, "via size", default = 2.5)
self.param("rail", self.TypeDouble, "rail to finger width ratio", default = 3)
self.param("PDN_S", self.TypeDouble, "Extra distance for PDN", default = 0)
self.param("pad", self.TypeBoolean, "Pads", default = False)
self.param("buffer", self.TypeBoolean, "Buffer", default = True)
self.param("name", self.TypeString, "name", default = "1_001")
def display_text_impl(self):
# Provide a descriptive text for the cell
return "STD Cell Ring_Osc_NAND2:(ratio=" + str((self.r)) + ",Width="+ "90*"+str((self.n_d)) + ")"
def can_create_from_shape_impl(self):
# Implement the "Create PCell from shape" protocol: we can use any shape which
# has a finite bounding box
return self.shape.is_box() or self.shape.is_polygon() or self.shape.is_path()
def create_pad(self, x, y):
# This is the main part of the implementation: create the layout
# fetch the parameters
w_dbu = 175 / self.layout.dbu
l_dbu = 175 / self.layout.dbu
w_via = 0.0857142857142857 * w_dbu
l_via = 0.0857142857142857 * l_dbu
w_via_cir = 5 / self.layout.dbu
l_via_cir = 5 / self.layout.dbu
# Other design rules and other "fixed" variables
posx = x / self.layout.dbu
posy = y / self.layout.dbu
nr = 128 # Number of points in a circle
# Define layer names
# Assign layers using list comprehension
layers = [self.layout.layer(i, 0) for i in [0, 1, 2, 3, 4, 6, 7, 9]]
# Unpack layers into variables
txt, bm, bl, sd, gm, pv, gc, pv2 = layers
# create the shape
# back-gate layer
full_region = pya.Box(posx - w_dbu / 2, posy - l_dbu / 2, posx + w_dbu / 2, posy + l_dbu / 2)
# print region
self.cell.shapes(bm).insert(full_region)
# gate connection layer
self.cell.shapes(gc).insert(full_region)
# inner via
square_region = pya.Region(
pya.Box(posx - w_dbu * 0.73 / 2, posy - l_dbu * 0.73 / 2, posx + w_dbu * 0.73 / 2, posy + l_dbu * 0.73 / 2))
# print region
self.cell.shapes(pv).insert(square_region)
# sqaure sd layer
b_region = pya.Region(pya.Box(posx - w_dbu / 2, posy - l_dbu / 2, posx + w_dbu / 2, posy - l_dbu / 2 + (l_via)))
r_region = pya.Region(pya.Box((posx + w_dbu / 2) - w_via, posy - l_dbu / 2, posx + w_dbu / 2, posy + l_dbu / 2))
t_region = pya.Region(pya.Box(posx - w_dbu / 2, posy + l_dbu / 2 - (l_via), posx + w_dbu / 2, posy + l_dbu / 2))
l_region = pya.Region(pya.Box((posx - w_dbu / 2) + w_via, posy - l_dbu / 2, posx - w_dbu / 2, posy + l_dbu / 2))
tot_region = b_region + r_region + t_region + l_region
tot_region.round_corners(0, 0, nr)
# print region
self.cell.shapes(sd).insert(tot_region)
# Round via
w_mar = int(((175 + 20) / 2) / 20)
l_mar = int(175 / 2 / 20)
for i in range(w_mar):
i = i / self.layout.dbu
# bottom line
# square region
# positive loop
square_region = pya.Region(pya.Box(posx - 7.5 / self.layout.dbu + 20 * i, posy - l_dbu / 2,\
posx + 7.5 / self.layout.dbu + 20 * i, posy - l_dbu / 2 + ((l_via - (\
15 / self.layout.dbu)) / 2) + 15 / self.layout.dbu))
# print region
self.cell.shapes(gc).insert(square_region)
# negative loop
square_region = pya.Region(pya.Box(posx - 7.5 / self.layout.dbu - 20 * i, posy - l_dbu / 2,\
posx + 7.5 / self.layout.dbu - 20 * i, posy - l_dbu / 2 + ((l_via - (\
15 / self.layout.dbu)) / 2) + 15 / self.layout.dbu))
# print region
self.cell.shapes(gc).insert(square_region)
# circle
# positive loop
circle_region = pya.Region(pya.Box(posx - 2.5 / self.layout.dbu + 20 * i, posy - l_dbu / 2 + (\
(l_via - (15 / self.layout.dbu)) / 2) + 5 / self.layout.dbu,\
posx + 2.5 / self.layout.dbu + 20 * i, posy - l_dbu / 2 + ((l_via - (\
15 / self.layout.dbu)) / 2) + 10 / self.layout.dbu)).round_corners(0, w_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
# negative loop
circle_region = pya.Region(pya.Box(posx - 2.5 / self.layout.dbu - 20 * i, posy - l_dbu / 2 + (\
(l_via - (15 / self.layout.dbu)) / 2) + 5 / self.layout.dbu,\
posx + 2.5 / self.layout.dbu - 20 * i, posy - l_dbu / 2 + ((l_via - (\
15 / self.layout.dbu)) / 2) + 10 / self.layout.dbu)).round_corners(0, w_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
# top line
# square region
# positive loop
square_region = pya.Region(pya.Box(posx - 7.5 / self.layout.dbu + 20 * i, posy + l_dbu / 2,\
posx + 7.5 / self.layout.dbu + 20 * i, posy + l_dbu / 2 - ((l_via - (\
15 / self.layout.dbu)) / 2) - 15 / self.layout.dbu))
# print region
self.cell.shapes(gc).insert(square_region)
# negative loop
square_region = pya.Region(pya.Box(posx - 7.5 / self.layout.dbu - 20 * i,\
posy + l_dbu / 2, posx + 7.5 / self.layout.dbu - 20 * i,\
posy + l_dbu / 2 - ((l_via - (15 / self.layout.dbu)) / 2) - 15 / self.layout.dbu))
# print region
self.cell.shapes(gc).insert(square_region)
# circle region
# positive loop
circle_region = pya.Region(pya.Box(posx - 2.5 / self.layout.dbu + 20 * i, posy + l_dbu / 2 - (\
(l_via - (15 / self.layout.dbu)) / 2) - 5 / self.layout.dbu,\
posx + 2.5 / self.layout.dbu + 20 * i, posy + l_dbu / 2 - ((l_via - (\
15 / self.layout.dbu)) / 2) - 10 / self.layout.dbu)).round_corners(0, w_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
# negative loop
circle_region = pya.Region(pya.Box(posx - 2.5 / self.layout.dbu - 20 * i, posy + l_dbu / 2 - (\
(l_via - (15 / self.layout.dbu)) / 2) - 5 / self.layout.dbu,\
posx + 2.5 / self.layout.dbu - 20 * i, posy + l_dbu / 2 - ((l_via - (\
15 / self.layout.dbu)) / 2) - 10 / self.layout.dbu)).round_corners(0, w_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
for i in range(l_mar):
i = i / self.layout.dbu
# left line
# square region
# positive loop
square_region = pya.Region(pya.Box(posx - w_dbu / 2, posy - 7.5 / self.layout.dbu + 20 * i,\
posx - w_dbu / 2 + ((w_via - (15 / self.layout.dbu)) / 2) + 15 / self.layout.dbu,\
posy + 7.5 / self.layout.dbu + 20 * i))
# print region
self.cell.shapes(gc).insert(square_region)
# negative loop
square_region = pya.Region(pya.Box(posx - w_dbu / 2, posy - 7.5 / self.layout.dbu - 20 * i,\
posx - w_dbu / 2 + ((w_via - (15 / self.layout.dbu)) / 2) + 15 / self.layout.dbu,\
posy + 7.5 / self.layout.dbu - 20 * i))
# print region
self.cell.shapes(gc).insert(square_region)
# circle region
# positive loop
circle_region = pya.Region(pya.Box(posx - w_dbu / 2 + ((w_via - (15 / self.layout.dbu)) / 2) + \
5 / self.layout.dbu, posy - 2.5 / self.layout.dbu + 20 * i,\
posx - w_dbu / 2 + ((w_via - (15 / self.layout.dbu)) / 2) + 10 / self.layout.dbu,\
posy + 2.5 / self.layout.dbu + 20 * i)).round_corners(0, l_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
# negative loop
circle_region = pya.Region(pya.Box(posx - w_dbu / 2 + ((w_via - (15 / self.layout.dbu)) / 2) + \
5 / self.layout.dbu, posy - 2.5 / self.layout.dbu - 20 * i,\
posx - w_dbu / 2 + ((w_via - (15 / self.layout.dbu)) / 2) + 10 / self.layout.dbu,\
posy + 2.5 / self.layout.dbu - 20 * i)).round_corners(0, l_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
# right line
# square region
# positive loop
square_region = pya.Region(pya.Box(posx + w_dbu / 2, posy - 7.5 / self.layout.dbu + 20 * i,\
posx + w_dbu / 2 - ((w_via - (15 / self.layout.dbu)) / 2) - 15 / self.layout.dbu,\
posy + 7.5 / self.layout.dbu + 20 * i))
# print region
self.cell.shapes(gc).insert(square_region)
# negative loop
square_region = pya.Region(pya.Box(posx + w_dbu / 2, posy - 7.5 / self.layout.dbu - 20 * i,\
posx + w_dbu / 2 - ((w_via - (15 / self.layout.dbu)) / 2) - 15 / self.layout.dbu,\
posy + 7.5 / self.layout.dbu - 20 * i))
# print region
self.cell.shapes(gc).insert(square_region)
# circle
# positive loop
circle_region = pya.Region(pya.Box(posx + w_dbu / 2 - ((w_via - (15 / self.layout.dbu)) / 2) - \
5 / self.layout.dbu, posy - 2.5 / self.layout.dbu + 20 * i,\
posx + w_dbu / 2 - ((w_via - (15 / self.layout.dbu)) / 2) - 10 / self.layout.dbu,\
posy + 2.5 / self.layout.dbu + 20 * i)).round_corners(0, l_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
# negative loop
circle_region = pya.Region(pya.Box(posx + w_dbu / 2 - ((w_via - (15 / self.layout.dbu)) / 2) - \
5 / self.layout.dbu, posy - 2.5 / self.layout.dbu - 20 * i,\
posx + w_dbu / 2 - ((w_via - (15 / self.layout.dbu)) / 2) - 10 / self.layout.dbu,\
posy + 2.5 / self.layout.dbu - 20 * i)).round_corners(0, l_via_cir / 2, nr)
# print region
self.cell.shapes(pv).insert(circle_region)
def transistor(self, level, x, y, w_i, n_i, l_i, bg, load, Int_Con, ov_l, ov_r, out):
# Other design rules and other "fixed" variables, such as layer identifiers, path widths, via hole sizes, etc.
nr = 128 # Number of points in a circle
# Define layer names
# Assign layers using list comprehension
layers = [self.layout.layer(i, 0) for i in [0, 1, 2, 3, 4, 6, 7, 9]]
# Unpack layers into variables
txt, bm, bl, sd, gm, pv, gc, pv2 = layers
# fetch the parameters
dbu = self.layout.dbu # How large the database unit is in microns (usually 0.001, i.e. 1 nm)
ov_l = ov_l / dbu
ov_r = ov_r / dbu
gate_overlap = self.o / dbu
n = n_i
bg_ov = gate_overlap/2
channel_length = l_i / dbu
finger_width = self.fw / dbu
channel_width_per_f = w_i / dbu
finger_sep = self.s / dbu
PDN_S_dbu = self.PDN_S / dbu
PV_BOX = self.via / dbu
EL_W = (gate_overlap + PV_BOX)
In_Box = (EL_W - PV_BOX) / 2
Top_Edge = y/dbu + channel_width_per_f/2 + gate_overlap + 2*finger_sep + finger_width + PDN_S_dbu #Top edge of Cell
Bottom_Edge = y/dbu -(channel_width_per_f/2 + gate_overlap + 2*finger_sep + finger_width + self.rail * finger_width + PDN_S_dbu) #Bottom edge of Cell
VDD_B_E = Top_Edge #VDD bottom edge
VDD_T_E = VDD_B_E + (self.rail * finger_width) #VDD top edge
VSS_B_E = Bottom_Edge #Vss top edge
VSS_T_E = VSS_B_E + (self.rail * finger_width) ##Vss bottom edge
finger_length = finger_sep+channel_width_per_f+2*gate_overlap # Correct
single_finger_region = pya.Region(pya.Box(0,0,finger_length,finger_width))
single_finger_region.move(-single_finger_region.bbox().center())
finger_region = pya.Region()
for i in range(n+1): # For each finger
if i%2 == 1:
lr=1
else:
lr=-1
finger_region=finger_region + single_finger_region.moved(lr*\
(finger_sep/2),(finger_width+channel_length)*i)
finger_region.move(-finger_region.bbox().center()) # Centre the fingers
source_backbone_region = pya.Region(pya.Box(0, 0, finger_width,(n - \
n%2)*(finger_width+channel_length)+finger_width))
source_backbone_region = source_backbone_region.moved(\
finger_region.bbox().left-finger_width,finger_region.bbox().bottom)
drain_backbone_region = pya.Region(pya.Box(0,0,finger_width,(n-2 + n%2)\
*(finger_width+channel_length)+finger_width))
drain_backbone_region = drain_backbone_region.moved(\
finger_region.bbox().right, \
finger_region.bbox().top-drain_backbone_region.bbox().top-(((n+1)%2)*\
(finger_width+channel_length)))
source_drain_region = pya.Region()
source_drain_region = source_drain_region + finger_region
source_drain_region = source_drain_region + source_backbone_region
source_drain_region = source_drain_region + drain_backbone_region
Left_Edge = x/dbu + source_drain_region.bbox().bottom - finger_width #Left edge of Cell
posx = Left_Edge - source_drain_region.bbox().bottom + finger_width
posy = y/dbu
if (level ==0):
rotation = pya.ICplxTrans(float (1), float(90), True, posx, posy)
else:
rotation = pya.ICplxTrans(float (1), float(90), False, posx, posy)
source_drain_region.merge()
self.cell.shapes(sd).insert(source_drain_region, rotation)
# Gate - Gate height calculations, Region creation and adding the region to the "gm" layer
gate_height = (n)*channel_length+(n+1)*finger_width
gate_region = pya.Region(pya.Box(0,0,channel_width_per_f,gate_height))
gate_region.move(-pya.Box(0,0, channel_width_per_f, \
gate_height).center()) # Centre the gate
self.cell.shapes(gm).insert(gate_region, rotation)
# Passivation layer for Transistor
if (load==False and level != 0):
if (out != 1):
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().left, gate_region.bbox().top,\
gate_region.bbox().left+EL_W, gate_region.bbox().top-EL_W))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(gm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate layer
vbg_cover = pya.Region(source_drain_region.bbox()).sized(bg_ov)
self.cell.shapes(bm).insert(vbg_cover, rotation)
#back gate connection
VBG_Ele_out = pya.Region(pya.Box(posx - finger_width, VDD_T_E, posx, posy)) # Vbgelectrode
self.cell.shapes(bm).insert(VBG_Ele_out)
if (out != 0):
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().right, gate_region.bbox().top,\
gate_region.bbox().right-EL_W, gate_region.bbox().top-EL_W))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(gm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate layer
vbg_cover = pya.Region(source_drain_region.bbox()).sized(bg_ov)
self.cell.shapes(bm).insert(vbg_cover, rotation)
#back gate connection
VBG_Ele_out = pya.Region(pya.Box(posx - finger_width, VDD_T_E, posx, posy)) # Vbgelectrode
self.cell.shapes(bm).insert(VBG_Ele_out)
if (load==False and level == 0):
if (out != 1):
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().left, gate_region.bbox().bottom,\
gate_region.bbox().left+EL_W, gate_region.bbox().bottom+EL_W))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(gm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate layer
vbg_cover = pya.Region(source_drain_region.bbox()).sized(bg_ov)
self.cell.shapes(bm).insert(vbg_cover, rotation)
#back gate connection
VBG_Ele_out = pya.Region(pya.Box(posx - finger_width, VDD_T_E, posx, posy)) # Vbgelectrode
self.cell.shapes(bm).insert(VBG_Ele_out)
if (out != 0):
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().right, gate_region.bbox().bottom,\
gate_region.bbox().right-EL_W, gate_region.bbox().bottom+EL_W))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(gm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate layer
vbg_cover = pya.Region(source_drain_region.bbox()).sized(bg_ov)
self.cell.shapes(bm).insert(vbg_cover, rotation)
#back gate connection
VBG_Ele_out = pya.Region(pya.Box(posx - finger_width, VDD_T_E, posx, posy)) # Vbgelectrode
self.cell.shapes(bm).insert(VBG_Ele_out)
if (load==True):
if (out != 1):
#gate via
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().left, gate_region.bbox().top,\
gate_region.bbox().left+EL_W, gate_region.bbox().top-EL_W))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(gm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate via
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().left, gate_region.bbox().top+EL_W,\
gate_region.bbox().left+EL_W, gate_region.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(bm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#Output via
PV_Region_sq_via = pya.Region(pya.Box(PV_Region_sq.bbox().right, PV_Region_sq.bbox().top+EL_W,\
PV_Region_sq.bbox().right-EL_W, PV_Region_sq.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq_via, rotation)
self.cell.shapes(sd).insert(PV_Region_sq_via, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq_via.bbox().left + In_Box, PV_Region_sq_via.bbox().bottom + In_Box,\
PV_Region_sq_via.bbox().right - In_Box, PV_Region_sq_via.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate layer
# vbg_cover = pya.Region(source_drain_region.bbox()).sized(bg_ov)
vbg_cover = pya.Region(pya.Box(source_drain_region.bbox().left - bg_ov, source_drain_region.bbox().bottom - bg_ov,\
source_drain_region.bbox().right + bg_ov, gate_region.bbox().top+EL_W))
self.cell.shapes(bm).insert(vbg_cover, rotation)
if (out != 0):
#gate via
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().right, gate_region.bbox().top,\
gate_region.bbox().right-EL_W, gate_region.bbox().top-EL_W))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(gm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate via
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().right, gate_region.bbox().top+EL_W,\
gate_region.bbox().right-EL_W, gate_region.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
self.cell.shapes(bm).insert(PV_Region_sq, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#Output via
PV_Region_sq_via = pya.Region(pya.Box(PV_Region_sq.bbox().right, PV_Region_sq.bbox().top+EL_W,\
PV_Region_sq.bbox().right-EL_W, PV_Region_sq.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq_via, rotation)
self.cell.shapes(sd).insert(PV_Region_sq_via, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq_via.bbox().left + In_Box, PV_Region_sq_via.bbox().bottom + In_Box,\
PV_Region_sq_via.bbox().right - In_Box, PV_Region_sq_via.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#back gate layer
# vbg_cover = pya.Region(source_drain_region.bbox()).sized(bg_ov)
vbg_cover = pya.Region(pya.Box(source_drain_region.bbox().left - bg_ov, source_drain_region.bbox().bottom - bg_ov,\
source_drain_region.bbox().right + bg_ov, gate_region.bbox().top+EL_W))
self.cell.shapes(bm).insert(vbg_cover, rotation)
#Positions
if (level == 0):
vdd0 = pya.Region(pya.Box(posx - drain_backbone_region.bbox().top, VDD_B_E - finger_sep\
, posx + drain_backbone_region.bbox().top, VDD_T_E))
self.cell.shapes(sd).insert(vdd0)
if (level == 1):
vdd1 = pya.Region(pya.Box(posx - drain_backbone_region.bbox().top, VDD_B_E - finger_sep\
, posx + drain_backbone_region.bbox().top, VDD_T_E))
self.cell.shapes(sd).insert(vdd1)
if (level == 3):
vss = pya.Region(pya.Box(posx - source_backbone_region.bbox().bottom, VSS_T_E + finger_sep\
, posx - source_backbone_region.bbox().top, VSS_B_E))
self.cell.shapes(sd).insert(vss)
Right_Edge = posx + source_drain_region.bbox().top + finger_width #Right edge of Cell
VDD_Ele = pya.Region(pya.Box(Left_Edge - ov_l, VDD_B_E, Right_Edge + ov_r, VDD_T_E)) # VDD rail
VSS_Ele = pya.Region(pya.Box(Left_Edge - ov_l, VSS_B_E, Right_Edge + ov_r, VSS_T_E)) # VSS rail
V_Ele = VDD_Ele + VSS_Ele
self.cell.shapes(sd).insert(V_Ele)
VBG_Ele = pya.Region(pya.Box(Left_Edge - ov_l, VDD_T_E, Right_Edge + ov_r, VDD_T_E - finger_width)) # Vgb rail
self.cell.shapes(bm).insert(VBG_Ele)
VDDTregion = pya.TextGenerator.default_generator().text\
("VDD", 0.001, 2*self.via).move(posx - PV_BOX, VDD_B_E)
VSSTregion = pya.TextGenerator.default_generator().text\
("VSS", 0.001, 2*self.via).move(posx - PV_BOX, VSS_B_E)
Tregion = VDDTregion + VSSTregion
self.cell.shapes(sd).insert(Tregion)
#Connection
#Source to Gate
if (Int_Con == 1 and out != 1):
D1_D2 = pya.Polygon([
pya.Point(x/dbu - gate_region.bbox().top - bg_ov,\
posy + source_drain_region.bbox().left + finger_width + finger_sep + bg_ov+EL_W),\
pya.Point(x/dbu - gate_region.bbox().top-bg_ov,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W - bg_ov - finger_width ,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W - bg_ov - finger_width ,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-bg_ov-EL_W,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-bg_ov-EL_W,\
posy + source_drain_region.bbox().left + finger_width + finger_sep + bg_ov+EL_W),\
])
self.cell.shapes(sd).insert(D1_D2)
#via connection
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().left, gate_region.bbox().top+bg_ov,\
gate_region.bbox().left+EL_W, gate_region.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
#Output via
PV_Region_sq_via = pya.Region(pya.Box(PV_Region_sq.bbox().right, PV_Region_sq.bbox().top+EL_W,\
PV_Region_sq.bbox().right-EL_W, PV_Region_sq.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq_via, rotation)
self.cell.shapes(sd).insert(PV_Region_sq_via, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq_via.bbox().left + In_Box, PV_Region_sq_via.bbox().bottom + In_Box,\
PV_Region_sq_via.bbox().right - In_Box, PV_Region_sq_via.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
if (Int_Con == 1 and out != 0):
D1_D2 = pya.Polygon([
pya.Point(x/dbu - gate_region.bbox().top-bg_ov ,\
posy + source_drain_region.bbox().right - (finger_width + finger_sep + gate_overlap)),\
pya.Point(x/dbu - gate_region.bbox().top-bg_ov,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W - bg_ov - finger_width ,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W - bg_ov - finger_width ,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-bg_ov-EL_W,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-bg_ov-EL_W,\
posy + source_drain_region.bbox().right - (finger_width + finger_sep + gate_overlap)),\
])
self.cell.shapes(sd).insert(D1_D2)
#via connection
PV_Region_sq = pya.Region(pya.Box(gate_region.bbox().right, gate_region.bbox().top+bg_ov,\
gate_region.bbox().right-EL_W, gate_region.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq, rotation)
#Output via
PV_Region_sq_via = pya.Region(pya.Box(PV_Region_sq.bbox().right, PV_Region_sq.bbox().top+EL_W,\
PV_Region_sq.bbox().right-EL_W, PV_Region_sq.bbox().top))
self.cell.shapes(gc).insert(PV_Region_sq_via, rotation)
self.cell.shapes(sd).insert(PV_Region_sq_via, rotation)
PV_Region = pya.Region(pya.Box(PV_Region_sq_via.bbox().left + In_Box, PV_Region_sq_via.bbox().bottom + In_Box,\
PV_Region_sq_via.bbox().right - In_Box, PV_Region_sq_via.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region, rotation)
#Source to Source
if (Int_Con == 100):
D1_D2 = pya.Region(pya.Box(x/dbu + channel_length/2 + finger_width, posy - source_drain_region.bbox().right,\
x/dbu - n*channel_length + channel_length/2 - (n+1)*finger_width - 2*finger_sep, posy - \
source_drain_region.bbox().right + finger_width))
self.cell.shapes(sd).insert(D1_D2)
#Source to Drain Load
if (Int_Con == 101 and load == True):
D1_D2 = pya.Polygon([
pya.Point(x/dbu - channel_length/2, posy + source_drain_region.bbox().right - finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-EL_W ,\
posy + source_drain_region.bbox().right - finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-EL_W,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W - bg_ov - finger_width ,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W - bg_ov - finger_width ,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - gate_region.bbox().top-2*EL_W,\
posy + source_drain_region.bbox().right),\
pya.Point(x/dbu - channel_length/2 ,\
posy + source_drain_region.bbox().right),
])
self.cell.shapes(sd).insert(D1_D2)
#Source to Drain
if (Int_Con == 101 and load == False):
D1_D2 = pya.Polygon([
pya.Point(x/dbu - channel_length/2, posy + source_drain_region.bbox().right - finger_width),\
pya.Point(x/dbu - source_drain_region.bbox().top - finger_sep,\
posy + source_drain_region.bbox().right - finger_width),\
pya.Point(x/dbu - source_drain_region.bbox().top - finger_sep,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - source_drain_region.bbox().top - 2*finger_sep - 2*finger_width,\
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - source_drain_region.bbox().top - 2*finger_sep - 2*finger_width,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - source_drain_region.bbox().top - finger_sep -finger_width,\
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu - source_drain_region.bbox().top - finger_sep -finger_width,\
posy + source_drain_region.bbox().right),\
pya.Point(x/dbu - channel_length/2 ,\
posy + source_drain_region.bbox().right),
])
self.cell.shapes(sd).insert(D1_D2)
#Drain to Source
if (Int_Con == 110):
D1_D2 = pya.Polygon([
pya.Point(x/dbu + channel_length/2 + finger_width, posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - source_drain_region.bbox().top - gate_overlap - finger_sep, \
posy + source_drain_region.bbox().left),\
pya.Point(x/dbu - source_drain_region.bbox().top - gate_overlap - finger_sep, \
posy + source_drain_region.bbox().right - finger_width),\
pya.Point(x/dbu - source_drain_region.bbox().top -2* gate_overlap - 2*finger_sep - finger_width - channel_length, \
posy + source_drain_region.bbox().right - finger_width),\
pya.Point(x/dbu - source_drain_region.bbox().top -2* gate_overlap - 2*finger_sep - finger_width - channel_length, \
posy + source_drain_region.bbox().right),\
pya.Point(x/dbu - source_drain_region.bbox().top - gate_overlap, \
posy + source_drain_region.bbox().right),\
pya.Point(x/dbu - source_drain_region.bbox().top - gate_overlap, \
posy + source_drain_region.bbox().left + finger_width),\
pya.Point(x/dbu + channel_length/2 + finger_width,
posy + source_drain_region.bbox().left + finger_width),
])
self.cell.shapes(sd).insert(D1_D2)
#Drain to Drain
if (Int_Con == 111):
D1_D2 = pya.Region(pya.Box(x/dbu - channel_length/2, posy + source_drain_region.bbox().right,\
x/dbu - source_drain_region.bbox().top - 2*gate_overlap - 2*finger_width - channel_length, posy + \
source_drain_region.bbox().right - finger_width))
self.cell.shapes(sd).insert(D1_D2)
#Drain Input
if (Int_Con == 999):
D_In = pya.Polygon([
pya.Point(x/dbu, posy + source_drain_region.bbox().right),\
pya.Point(x/dbu - gate_region.bbox().top -EL_W - bg_ov,\
posy + source_drain_region.bbox().right),\
pya.Point(x/dbu - gate_region.bbox().top -EL_W - bg_ov,\
posy + source_drain_region.bbox().left + finger_width + finger_sep + gate_overlap),\
pya.Point(x/dbu - gate_region.bbox().top - bg_ov,\
posy + source_drain_region.bbox().left + finger_width + finger_sep + gate_overlap),\
pya.Point(x/dbu - gate_region.bbox().top - bg_ov,\
posy + source_drain_region.bbox().right - finger_width),\
pya.Point(x/dbu,\
posy + source_drain_region.bbox().right - finger_width)\
])
self.cell.shapes(sd).insert(D_In)
#via connection
PV_Region_sq = pya.Region(pya.Box(x/dbu - gate_region.bbox().top -EL_W - bg_ov\
, posy + source_drain_region.bbox().left + finger_width + finger_sep + gate_overlap,\
x/dbu - gate_region.bbox().top - bg_ov\
, posy + source_drain_region.bbox().left + finger_width + finger_sep + gate_overlap + EL_W))
self.cell.shapes(gc).insert(PV_Region_sq)
self.cell.shapes(sd).insert(PV_Region_sq)
#Output via
PV_Region = pya.Region(pya.Box(PV_Region_sq.bbox().left + In_Box, PV_Region_sq.bbox().bottom + In_Box,\
PV_Region_sq.bbox().right - In_Box, PV_Region_sq.bbox().top - In_Box))
PV_Region = PV_Region.round_corners(PV_BOX, PV_BOX, nr)
self.cell.shapes(pv).insert(PV_Region)
def impl(self):
#Definitions
dbu = self.layout.dbu
ov = self.o
ov_dbu = ov / dbu
via = self. via
w_d = 90
path_width = ov + via
path_width_dbu = path_width/dbu
finger_width = self.fw
finger_sep = self.s
finger_sep_dbu = finger_sep / dbu
finger_width_dbu = finger_width / dbu
path_step = path_width_dbu + finger_sep_dbu
right_ov_load = path_width + finger_sep
# Define layer names
# Assign layers using list comprehension
layers = [self.layout.layer(i, 0) for i in [0, 1, 2, 3, 4, 6, 7, 9]]
# Unpack layers into variables
txt, bm, bl, sd, gm, pv, gc, pv2 = layers
q = self.l_d / self.l_l
p = int(self.r / q)
y = 0
Top_Edge = (y + w_d/2 + ov + 2*finger_sep + finger_width + self.PDN_S)/dbu #Top edge of Cell
Top_rail = Top_Edge + self.rail*finger_width_dbu/2
Bottom_Edge = (y-(w_d/2 + ov + 2*finger_sep + finger_width + self.PDN_S))/dbu #Bottom edge of Cell
Bottom_rail = Bottom_Edge - self.rail*finger_width_dbu/2
x0 = -((self.n_d*self.l_d)+(self.n_d+1)*finger_width)/2
# x0 = 0
d_x_0 = ((-2*x0) + finger_sep ) / 5
d_x_1 = ((-2*x0) + 2*finger_sep + path_width) / 5
d_x_100 = ((-2*x0) + finger_sep ) / 5
d_x_101 = ((-2*x0) + 2*finger_sep + finger_width) / 5
d_x_110 = ((-2*x0) + 2*finger_sep + finger_width) / 5
d_x_111 = ((-2*x0) + 2*finger_sep) / 5
l_x = (((p*self.n_d*self.l_l)+(p*self.n_d+1)*finger_width)/2 -x0\
+ 2.5*ov +2*via)/5
Top_Path = (w_d/2 + ov + 2*self.s + finger_width - path_width/2)/dbu #Top edge of Cell
# third_path = Top_Path / 3
third_path = y/dbu + path_width_dbu/2 + 3*ov_dbu/2 + via/2/dbu
gate_connection = (w_d/2 - path_width/2)/dbu #Top gate of Cell
gate_edge = ((self.n_d)*self.l_d+(self.n_d+1)*finger_width)/2
gate_out = gate_connection + 4*path_step - path_width_dbu/2 + finger_sep_dbu
gate_in = -gate_out
#transistors implementation
# self.transistor(level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth)
# Levels:
# 1: connected to VDD
# 2: Float
# 3: connected to VSS
# If Int_Con start with 0 nothing will happend, but for:
# 001: Source to Gate
# 100: Source to Source
# 101: Source to Drain
# 110: Drain to Source
# 111: Drain to Drain
# 999: Drain Input
#If out = 0, the via of the transistors are down
#If out = 1, the via of the transistors are up
#Ring_1
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)0
if (self.buffer == True):
tr_n=29
else:
tr_n=21
xp=x0-(self.n_d*tr_n*(finger_width+self.l_d)/2)
self.transistor(0, xp, y, w_d, self.n_d, self.l_d, True, False, 0, 0, 0, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I0", 0.001, 5).move((xp- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)1
x1 = xp + 5*d_x_0
self.transistor(1, x1, y, w_d, self.n_d, self.l_d, True, False, 100, d_x_0, right_ov_load, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I1", 0.001, 5).move((x1- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)2
x2 = x1 + 5*l_x
self.transistor(3, x2, y, w_d, p * self.n_d, self.l_l, True, True, 101, l_x, right_ov_load, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("Out", 0.001, 5).move((x2 - gate_edge) / dbu, Top_Path + 20 / dbu)
self.cell.shapes(txt).insert(iTregion)
#Ring_2
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)3
x3= x2 + 5*d_x_101
self.transistor(0, x3, y, w_d, self.n_d, self.l_d, True, False, 0, l_x, 0, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I0", 0.001, 5).move((x3- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)4
x4 = x3 + 5*d_x_0
self.transistor(1, x4, y, w_d, self.n_d, self.l_d, True, False, 100, d_x_0, right_ov_load, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I1", 0.001, 5).move((x4- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)5
x5 = x4 + 5*l_x
self.transistor(3, x5, y, w_d, p * self.n_d, self.l_l, True, True, 101, l_x, 0, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("Out", 0.001, 5).move((x5 - gate_edge) / dbu, Top_Path + 20 / dbu)
self.cell.shapes(txt).insert(iTregion)
#Ring_3
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)6
x6= x5 + 5*d_x_101
self.transistor(0, x6, y, w_d, self.n_d, self.l_d, True, False, 0, l_x, 0, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I0", 0.001, 5).move((x6- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)7
x7 = x6 + 5*d_x_0
self.transistor(1, x7, y, w_d, self.n_d, self.l_d, True, False, 100, d_x_0, right_ov_load, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I1", 0.001, 5).move((x7- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)8
x8 = x7 + 5*l_x
self.transistor(3, x8, y, w_d, p * self.n_d, self.l_l, True, True, 101, l_x, 0, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("Out", 0.001, 5).move((x8 - gate_edge) / dbu, Top_Path + 20 / dbu)
self.cell.shapes(txt).insert(iTregion)
#Ring_4
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)9
x9= x8 + 5*d_x_101
self.transistor(0, x9, y, w_d, self.n_d, self.l_d, True, False, 0, l_x, 0, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I0", 0.001, 5).move((x9- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)10
x10 = x9 + 5*d_x_0
self.transistor(1, x10, y, w_d, self.n_d, self.l_d, True, False, 100, d_x_0, right_ov_load, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I1", 0.001, 5).move((x10- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)11
x11 = x10 + 5*l_x
self.transistor(3, x11, y, w_d, p * self.n_d, self.l_l, True, True, 101, l_x, 0, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("Out", 0.001, 5).move((x11 - gate_edge) / dbu, Top_Path + 20 / dbu)
self.cell.shapes(txt).insert(iTregion)
#Ring_5
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)12
x12= x11 + 5*d_x_101
self.transistor(0, x12, y, w_d, self.n_d, self.l_d, True, False, 0, l_x, 0, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I0", 0.001, 5).move((x12- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)13
x13 = x12 + 5*d_x_0
self.transistor(1, x13, y, w_d, self.n_d, self.l_d, True, False, 100, d_x_0, right_ov_load, 0)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I1", 0.001, 5).move((x13- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)14
x14 = x13 + 5*l_x
self.transistor(3, x14, y, w_d, p * self.n_d, self.l_l, True, True, 101, l_x, 0, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("Out", 0.001, 5).move((x14 - gate_edge) / dbu, Top_Path + 20 / dbu)
self.cell.shapes(txt).insert(iTregion)
# Buffer
if (self.buffer == True):
rt = 3
x0_buffer = -((rt*self.n_d*self.l_d)+(rt*self.n_d+1)*finger_width)/2
#Nand
d_x_0_buffer = ((-x0_buffer-x0) + finger_sep +2*finger_width) / 5
d_x_1_buffer = ((-2*x0_buffer) + finger_sep) / 5
#NOR
d_x_buffer_0 = ((-x0_buffer-x0) + 2*finger_sep + finger_width) / 5
d_x_101_buffer = ((-2*x0_buffer) + 2*finger_sep + finger_width) / 5
l_x_buffer = (((rt*p*self.n_d*self.l_l)+(rt*p*self.n_d+1)*finger_width)/2 -x0_buffer\
+ 2.5*ov +2*via)/5
gate_edge_buffer = ((rt*self.n_d)*self.l_d+(rt*self.n_d+1)*finger_width)/2
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)15
x15= x14 + 5*d_x_buffer_0
self.transistor(0, x15, y, w_d, rt*self.n_d, self.l_d, True, False, 0, l_x, 0, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I0", 0.001, 5).move((x15- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)16
x16 = x15 + 5*d_x_0_buffer
self.transistor(1, x16, y, w_d, rt*self.n_d, self.l_d, True, False, 100, d_x_0, right_ov_load, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("I1", 0.001, 5).move((x16- gate_edge)/ dbu, -Top_Path - 25 / dbu)
self.cell.shapes(txt).insert(iTregion)
# (level, x, y, w_i, n_i, l_i, bg, Load, In_Con, overlap_left, overlap_rigth, out)17
x17 = x16 + 5*l_x_buffer
self.transistor(3, x17, y, w_d, rt*p * self.n_d, self.l_l, True, True, 101, l_x, 0, 1)
#gates name
iTregion = pya.TextGenerator.default_generator().text\
("Out", 0.001, 5).move((x17 - gate_edge) / dbu, Top_Path + 20 / dbu)
self.cell.shapes(txt).insert(iTregion)
# I0 Input
Input = pya.Path([pya.Point((xp-gate_edge + (via + ov)/2)/dbu, y/dbu-gate_connection ),
pya.Point((xp-gate_edge + (via + ov)/2)/dbu, Bottom_Edge),
],path_width_dbu)
self.cell.shapes(gc).insert(Input)
# # I1 Input
# Input = pya.Path([pya.Point((x1-gate_edge + (via + ov)/2)/dbu, y/dbu-gate_connection ),
# pya.Point((x1-gate_edge + (via + ov)/2)/dbu, Bottom_Edge),
# ],path_width_dbu)
# self.cell.shapes(gc).insert(Input)
# Out
if (self.buffer == True):
Out = pya.Path([pya.Point((x17-gate_edge_buffer + (via + ov)/2)/dbu, y/dbu+gate_connection ),
pya.Point((x17-gate_edge_buffer + (via + ov)/2)/dbu, Top_Edge),
],path_width_dbu)
self.cell.shapes(gc).insert(Out)
else:
Out = pya.Path([pya.Point((x14-gate_edge + (via + ov)/2)/dbu, y/dbu+gate_connection ),
pya.Point((x14-gate_edge + (via + ov)/2)/dbu, Top_Edge),
],path_width_dbu)
self.cell.shapes(gc).insert(Out)
# Out2_In3,4
interconnect = pya.Path([pya.Point((x2-gate_edge + (via + ov)/2)/dbu, y/dbu+gate_connection),
pya.Point((x4-gate_edge + (via + ov)/2)/dbu, y/dbu+gate_connection),
],path_width_dbu)
self.cell.shapes(gc).insert(interconnect)
# Out5_In6,7
interconnect = pya.Path([pya.Point((x5-gate_edge + (via + ov)/2)/dbu, y/dbu-gate_connection),
pya.Point((x7-gate_edge + (via + ov)/2)/dbu, y/dbu-gate_connection),
],path_width_dbu)
self.cell.shapes(gc).insert(interconnect)
# Out8_In9,10
interconnect = pya.Path([pya.Point((x8-gate_edge + (via + ov)/2)/dbu, y/dbu+gate_connection),
pya.Point((x10-gate_edge + (via + ov)/2)/dbu, y/dbu+gate_connection),
],path_width_dbu)
self.cell.shapes(gc).insert(interconnect)
# Out11_In12,13
interconnect = pya.Path([pya.Point((x11-gate_edge + (via + ov)/2)/dbu, y/dbu-gate_connection),
pya.Point((x13-gate_edge + (via + ov)/2)/dbu, y/dbu-gate_connection),
],path_width_dbu)
self.cell.shapes(gc).insert(interconnect)
# Out14_In15,16
if (self.buffer == True):
interconnect = pya.Path([pya.Point((x14-gate_edge + (via + ov)/2)/dbu, y/dbu+gate_connection),
pya.Point((x16-gate_edge_buffer + (via + ov)/2)/dbu, y/dbu+gate_connection),
],path_width_dbu)
self.cell.shapes(gc).insert(interconnect)
# IN_OUT
interconnect = pya.Path([pya.Point((x14-gate_edge + (via + ov)/2)/dbu, y/dbu+gate_connection),
pya.Point((x14-gate_edge + (via + ov)/2)/dbu, y/dbu),
pya.Point((x1-gate_edge + (via + ov)/2)/dbu, y/dbu),
pya.Point((x1-gate_edge + (via + ov)/2)/dbu, y/dbu-gate_connection),
],path_width_dbu)
self.cell.shapes(gc).insert(interconnect)
# Pads
if(self.pad):
list_a = [-600, 0, 600]
list_b = [-200, 200]
for i in list_a:
for j in list_b:
self.create_pad(i, j)
# Vdd connection
vdd = pya.Path([
pya.Point((list_a[0]+80)/dbu, (list_b[1])/dbu),
pya.Point((list_a[0]+80)/dbu, Top_rail),
pya.Point((xp-gate_edge + (via + ov)/2)/dbu, Top_rail),
],self.rail*finger_width_dbu)
self.cell.shapes(sd).insert(vdd)
# Vss connection
vss = pya.Path([
pya.Point((list_a[2]-80)/dbu, (list_b[0])/dbu),
pya.Point((list_a[2]-80)/dbu, Bottom_rail),
pya.Point((x14-gate_edge + (via + ov)/2)/dbu, Bottom_rail),
],self.rail*finger_width_dbu)
self.cell.shapes(sd).insert(vss)
# Vbg connection
vbg = pya.Path([
pya.Point((list_a[1]), (list_b[1])/dbu),
pya.Point((list_a[1]), Top_Edge + self.rail*finger_width_dbu - finger_width_dbu/2),
pya.Point((xp-gate_edge + (via + ov)/2)/dbu, Top_Edge + self.rail*finger_width_dbu - finger_width_dbu/2),
pya.Point((xp-gate_edge + (via + ov)/2)/dbu, Top_Edge + self.rail*finger_width_dbu - finger_width_dbu),
],finger_width_dbu)
self.cell.shapes(bm).insert(vbg)
# Vin1 connection
vin1 = pya.Path([
pya.Point((list_a[0]+80)/dbu, (list_b[0])/dbu),
pya.Point((list_a[0]+80)/dbu, gate_in),
pya.Point((xp-gate_edge + (via + ov)/2)/dbu, gate_in),
pya.Point((xp-gate_edge + (via + ov)/2)/dbu, Bottom_Edge),
],path_width_dbu)
self.cell.shapes(gc).insert(vin1)
# # Vin2 connection
# vin2 = pya.Path([
# pya.Point(0, -200/dbu),
# pya.Point(0, -2*path_step + gate_in),
# pya.Point((x1-gate_edge + (via + ov)/2)/dbu,-2*path_step + gate_in),
# pya.Point((x1-gate_edge + (via + ov)/2)/dbu, Bottom_Edge),
# ],path_width_dbu)
# self.cell.shapes(gc).insert(vin2)
# Vout connection
if (self.buffer == True):
vout = pya.Path([
pya.Point((list_a[2]-80)/dbu, (list_b[1])/dbu),
pya.Point((list_a[2]-80)/dbu, gate_out),
pya.Point((x17-gate_edge_buffer + (via + ov)/2)/dbu, gate_out),
pya.Point((x17-gate_edge_buffer + (via + ov)/2)/dbu, Top_Edge),
],path_width_dbu)