def test_via_multi_terminal_open():
c = Canvas()
c.addGen(Wire(nm='m1', layer='M1', direction='v', clg=None, spg=None))
c.addGen(Wire(nm='m2', layer='M2', direction='h', clg=None, spg=None))
c.addGen(Via(nm="v1", layer="via1", h_clg=None, v_clg=None))
c.terminals = [{
'layer': 'M2',
'netName': None,
'rect': [0, -50, 300, 50]
}, {
'layer': 'M1',
'netName': 'M1:S',
'rect': [100, -150, 200, 150]
}, {
'layer': 'M1',
'netName': 'M1:D',
'rect': [0, -150, 50, 150]
}, {
'layer': 'via1',
'netName': None,
'rect': [100, -50, 200, 50]
}, {
'layer': 'via1',
'netName': None,
'rect': [0, -50, 50, 50]
}]
c.removeDuplicates()
assert len(c.rd.shorts) == 0
assert len(c.rd.opens) == 2
assert len(c.rd.subinsts) == 1
assert len(c.rd.subinsts['M1']) == 2
def setup():
p = Pdk().load('../PDK_Abstraction/FinFET14nm_Mock_PDK/FinFET_Mock_PDK_Abstraction.json')
c = Canvas(p)
c.addGen( Wire( nm='m1', layer='M1', direction='v', clg=None, spg=None))
c.addGen( Wire( nm='m2', layer='M2', direction='h', clg=None, spg=None))
c.addGen( Via( nm="v1", layer="V1", h_clg=None, v_clg=None))
return c
def test_m2_and_m3():
c = Canvas()
m1 = c.addGen( Wire( nm='m1', layer='M1', direction='v',
clg=UncoloredCenterLineGrid( width=400, pitch=720, repeat=2),
spg=EnclosureGrid( pitch=720, stoppoint=360)))
m2 = c.addGen( Wire( nm='m2', layer='M2', direction='h',
clg=UncoloredCenterLineGrid( width=400, pitch=720, repeat=5),
spg=EnclosureGrid( pitch=720, stoppoint=360)))
m3 = c.addGen( Wire( nm='m3', layer='M3', direction='v',
clg=UncoloredCenterLineGrid( width=400, pitch=720, repeat=2),
spg=EnclosureGrid( pitch=720, stoppoint=360)))
v1 = c.addGen( Via( nm='v1', layer='via1', h_clg=m2.clg, v_clg=m1.clg))
v2 = c.addGen( Via( nm='v2', layer='via2', h_clg=m2.clg, v_clg=m3.clg))
for i in [0,2,4]:
c.addWire( m1, 'a', None, i, (0,1), (4,-1))
for i in [1,3,5]:
c.addWire( m1, 'b', None, i, (0,1), (4,-1))
c.addWireAndViaSet( 'b', None, m2, v1, 3, [(0,1), (1,1), (2,1)])
c.addWireAndViaSet( 'a', None, m2, v1, 2, [(0,0), (1,0), (2,0)])
c.addWireAndMultiViaSet( 'b', None, m2, 1, [(v1, [(0,1), (1,1)]), (v2, [(2,1)])])
c.addWireAndViaSet( 'b', None, m3, v2, (2,1), [1,3])
print( c.terminals)
c.computeBbox()
fn = "tests/__json_via_set_m2_m3"
data = { 'bbox' : c.bbox.toList(),
'globalRoutes' : [],
'globalRouteGrid' : [],
# 'terminals' : c.terminals}
'terminals' : c.removeDuplicates()}
with open( fn + "_cand", "wt") as fp:
fp.write( json.dumps( data, indent=2) + '\n')
with open( fn + "_gold", "rt") as fp:
data2 = json.load( fp)
assert data == data2
def test_via_multi_terminal_short():
c = Canvas()
c.addGen(Wire(nm='m1', layer='M1', direction='v', clg=None, spg=None))
c.addGen(Via(nm="v0", layer="via0", h_clg=None, v_clg=None))
c.terminals = [{
'layer': 'M1',
'netName': 'x',
'rect': [100, -150, 200, 150]
}, {
'layer': 'M1',
'netName': 'y',
'rect': [300, -150, 600, 150]
}, {
'layer': 'via0',
'netName': 'M1:S',
'rect': [100, -50, 200, 50]
}, {
'layer': 'via0',
'netName': 'M1:S',
'rect': [300, -50, 600, 50]
}]
c.layer_stack.append(('via0', ('M1', None)))
c.removeDuplicates()
assert len(c.rd.subinsts) == 1
assert len(c.rd.subinsts['M1']) == 1
assert len(c.rd.shorts) == 1
assert len(c.rd.opens) == 0
def test_metal_multi_terminal_connection():
c = Canvas()
c.addGen(Wire(nm='m2', layer='metal2', direction='h', clg=None, spg=None))
c.terminals = [{
'layer': 'metal2',
'netName': 'M1:S',
'rect': [0, -50, 300, 50]
}, {
'layer': 'metal2',
'netName': 'inp1',
'rect': [200, -50, 600, 50]
}, {
'layer': 'metal2',
'netName': 'M1:D',
'rect': [400, -50, 800, 50]
}, {
'layer': 'metal2',
'netName': None,
'rect': [700, -50, 1000, 50]
}, {
'layer': 'metal2',
'netName': 'M2:inp',
'rect': [900, -50, 1200, 50]
}]
c.removeDuplicates()
assert len(c.rd.shorts) == 0
assert len(c.rd.subinsts) == 2
assert len(c.rd.subinsts['M1']) == 2
assert len(c.rd.subinsts['M2']) == 1
assert len(c.rd.opens) == 0
def test_vertical():
c = Canvas()
c.addGen(Wire(nm='m1', layer='metal1', direction='v', clg=None, spg=None))
c.terminals = [{
'layer': 'metal1',
'netName': 'x',
'rect': [0, 0, 100, 300]
}]
c.removeDuplicates()
def setup():
c = Canvas()
m1 = c.addGen( Wire( nm='m1', layer='M1', direction='v',
clg=UncoloredCenterLineGrid( width=400, pitch=720, repeat=2),
spg=EnclosureGrid( pitch=720, stoppoint=360)))
m2 = c.addGen( Wire( nm='m2', layer='M2', direction='h',
clg=UncoloredCenterLineGrid( width=400, pitch=720, repeat=5),
spg=EnclosureGrid( pitch=720, stoppoint=360)))
m3 = c.addGen( Wire( nm='m3', layer='M3', direction='v',
clg=UncoloredCenterLineGrid( width=400, pitch=720, repeat=2),
spg=EnclosureGrid( pitch=720, stoppoint=360)))
v1 = c.addGen( Via( nm='v1', layer='via1', h_clg=m2.clg, v_clg=m1.clg))
v2 = c.addGen( Via( nm='v2', layer='via2', h_clg=m2.clg, v_clg=m3.clg))
return (c, m1, v1, m2, v2, m3)
def test_via_short1():
c = Canvas()
c.addGen(Wire(nm='m1', layer='M1', direction='v', clg=None, spg=None))
c.addGen(Wire(nm='m2', layer='M2', direction='h', clg=None, spg=None))
c.addGen(Via(nm="v1", layer="via1", h_clg=None, v_clg=None))
c.terminals = [{
'layer': 'M2',
'netName': 'a',
'rect': [0, -50, 300, 50]
}, {
'layer': 'M1',
'netName': 'b',
'rect': [100, -150, 200, 150]
}, {
'layer': 'via1',
'netName': None,
'rect': [100, -50, 200, 50]
}]
print(c.removeDuplicates())
assert len(c.rd.shorts) == 1
def test_via_connectf():
c = Canvas()
c.addGen(Wire(nm='m1', layer='M1', direction='v', clg=None, spg=None))
c.addGen(Wire(nm='m2', layer='M2', direction='h', clg=None, spg=None))
c.addGen(Via(nm="v1", layer="via1", h_clg=None, v_clg=None))
c.terminals = [{
'layer': 'M2',
'netName': 'b',
'rect': [0, -50, 300, 50]
}, {
'layer': 'M1',
'netName': None,
'rect': [100, -150, 200, 150]
}, {
'layer': 'via1',
'netName': None,
'rect': [100, -50, 200, 50]
}]
terms = c.removeDuplicates()
print(terms)
assert len(c.rd.shorts) == 0
assert {d['netName'] for d in terms} == {'b'}
def test_open():
c = Canvas()
c.addGen(Wire(nm='m2', layer='metal2', direction='h', clg=None, spg=None))
c.terminals = [{
'layer': 'metal2',
'netName': 'x',
'rect': [0, -50, 300, 50]
}, {
'layer': 'metal2',
'netName': 'x',
'rect': [400, -50, 600, 50]
}]
c.removeDuplicates()
assert len(c.rd.opens) == 1
def test_metal_terminal_connection():
c = Canvas()
c.addGen(Wire(nm='m2', layer='metal2', direction='h', clg=None, spg=None))
c.terminals = [{
'layer': 'metal2',
'netName': 'x',
'rect': [0, -50, 300, 50]
}, {
'layer': 'metal2',
'netName': 'M1:S',
'rect': [200, -50, 600, 50]
}]
c.removeDuplicates()
assert len(c.rd.shorts) == 0
assert len(c.rd.subinsts) == 1
def test_different_widths():
c = Canvas()
c.addGen(Wire(nm='m2', layer='metal2', direction='h', clg=None, spg=None))
c.terminals = [{
'layer': 'metal2',
'netName': 'x',
'rect': [0, -50, 300, 50]
}, {
'layer': 'metal2',
'netName': 'x',
'rect': [0, -60, 300, 60]
}]
# with pytest.raises(AssertionError) as excinfo:
if True:
c.removeDuplicates()
def test_overlapping():
c = Canvas()
c.addGen(Wire(nm='m2', layer='metal2', direction='h', clg=None, spg=None))
c.terminals = [{
'layer': 'metal2',
'netName': 'x',
'rect': [0, -50, 300, 50]
}, {
'layer': 'metal2',
'netName': 'x',
'rect': [200, -50, 600, 50]
}]
newTerminals = c.removeDuplicates()
assert len(newTerminals) == 1
assert newTerminals[0]['rect'] == [0, -50, 600, 50]
def test_different_widths():
c = Canvas()
c.addGen(Wire(nm='m2', layer='metal2', direction='h', clg=None, spg=None))
c.terminals = [{
'layer': 'metal2',
'netName': 'x',
'rect': [0, -50, 300, 50]
}, {
'layer': 'metal2',
'netName': 'x',
'rect': [0, -60, 300, 60]
}]
with pytest.raises(AssertionError) as excinfo:
c.removeDuplicates()
assert "Rectangles on layer metal2 with the same centerline 0 but" in str(
excinfo.value)
def __init__(self, fin_u, fin, finDummy, gate, gateDummy, pdkfile=pdkfile):
p = Pdk().load(pdkfile)
super().__init__(p)
assert 3 * p['Fin']['Pitch'] < 2 * p['M2']['Pitch']
######### Derived Parameters ############
self.gatesPerUnitCell = gate + 2 * gateDummy
self.finsPerUnitCell = fin + 2 * finDummy
# Should be a multiple of 4 for maximum utilization
assert self.finsPerUnitCell % 4 == 0
assert fin >= fin_u, "number of fins in the transistor is greater than unit cell fins"
assert fin_u > 3, "number of fins in the transistor must be more than 2"
assert finDummy % 2 == 0
assert gateDummy > 0
self.m2PerUnitCell = self.finsPerUnitCell // 2 + 0
self.unitCellHeight = self.m2PerUnitCell * p['M2']['Pitch']
unitCellLength = self.gatesPerUnitCell * p['Poly']['Pitch']
activeWidth1 = p['Fin']['Pitch'] * fin_u
activeWidth = p['Fin']['Pitch'] * fin
activeOffset = activeWidth // 2 + finDummy * p['Fin']['Pitch'] - p[
'Fin']['Pitch'] // 2
activePitch = self.unitCellHeight
RVTWidth = activeWidth1 + 2 * p['Feol']['active_enclosure']
self.m0 = self.addGen(
Wire('m0',
'M0',
'v',
clg=UncoloredCenterLineGrid(pitch=p['Feol']['m0Pitch'],
width=p['Feol']['m0Width'],
offset=p['Feol']['m0Pitch'] // 2),
spg=EnclosureGrid(pitch=activePitch,
offset=activeOffset,
stoppoint=activeWidth // 2,
check=True)))
self.pl = self.addGen(
Wire('pl',
'poly',
'v',
clg=UncoloredCenterLineGrid(pitch=p['Poly']['Pitch'],
width=p['Poly']['Width'],
offset=p['Poly']['Offset']),
spg=SingleGrid(offset=p['M2']['Offset'],
pitch=self.unitCellHeight)))
self.fin = self.addGen(
Wire('fin',
'fin',
'h',
clg=UncoloredCenterLineGrid(pitch=p['Fin']['Pitch'],
width=p['Fin']['Width'],
offset=p['Fin']['Offset']),
spg=SingleGrid(offset=0, pitch=unitCellLength)))
stoppoint = (gateDummy - 1) * p['Poly']['Pitch'] + p['Poly']['Offset']
self.active = self.addGen(
Wire('active',
'active',
'h',
clg=UncoloredCenterLineGrid(pitch=activePitch,
width=activeWidth1,
offset=activeOffset),
spg=EnclosureGrid(pitch=unitCellLength,
offset=0,
stoppoint=stoppoint,
check=True)))
self.RVT = self.addGen(
Wire('RVT',
'polycon',
'h',
clg=UncoloredCenterLineGrid(pitch=activePitch,
width=RVTWidth,
offset=activeOffset),
spg=EnclosureGrid(pitch=unitCellLength,
offset=0,
stoppoint=stoppoint,
check=True)))
self.nselect = self.addGen(
Region('nselect',
'nselect',
v_grid=CenteredGrid(offset=p['Poly']['Pitch'] // 2,
pitch=p['Poly']['Pitch']),
h_grid=self.fin.clg))
self.pselect = self.addGen(
Region('pselect',
'pselect',
v_grid=CenteredGrid(offset=p['Poly']['Pitch'] // 2,
pitch=p['Poly']['Pitch']),
h_grid=self.fin.clg))
self.nwell = self.addGen(
Region('nwell',
'nwell',
v_grid=CenteredGrid(offset=p['Poly']['Pitch'] // 2,
pitch=p['Poly']['Pitch']),
h_grid=self.fin.clg))
self.v0 = self.addGen(
Via('v0', 'V0', h_clg=CenterLineGrid(), v_clg=self.m1.clg))
self.v0.h_clg.addCenterLine(0, p['V0']['WidthY'], False)
for i in range(
max(activeWidth1 // (2 * p['M2']['Pitch']), 1) +
((fin - fin_u) // 2 + finDummy + 1) // 2):
self.v0.h_clg.addCenterLine(
(i - 1 + fin_u // fin) * 3 * p['Fin']['Pitch'],
p['V0']['WidthY'], True)
self.v0.h_clg.addCenterLine(self.unitCellHeight, p['V0']['WidthY'],
False)
def __init__( self, fin_u, fin, finDummy, gate, gateDummy):
p = Pdk().load('../PDK_Abstraction/FinFET14nm_Mock_PDK/FinFET_Mock_PDK_Abstraction.json')
super().__init__(p)
assert 3*p['Fin']['Pitch'] < 2*p['M2']['Pitch']
######### Derived Parameters ############
self.gatesPerUnitCell = gate + 2*gateDummy
self.finsPerUnitCell = fin + 2*finDummy
# Must be a multiple of 2
assert self.finsPerUnitCell % 2 == 0
assert finDummy % 2 == 0
assert gateDummy > 0
# Should be a multiple of 4 for maximum utilization
assert self.finsPerUnitCell % 4 == 0
self.m2PerUnitCell = self.finsPerUnitCell//2 + 0
self.unitCellHeight = self.m2PerUnitCell* p['M2']['Pitch']
unitCellLength = self.gatesPerUnitCell* p['Poly']['Pitch']
activeWidth = p['Fin']['Pitch']*fin
activeOffset = activeWidth//2 + finDummy* p['Fin']['Pitch']-p['M2']['Pitch']//2+p['Fin']['Offset']
activePitch = self.unitCellHeight
RVTPitch = activePitch
RVTWidth = activeWidth + 2*p['Feol']['active_enclosure']
RVTOffset = RVTWidth//2 + finDummy* p['Fin']['Pitch']-p['Fin']['Pitch']//2-p['Feol']['active_enclosure']+p['Fin']['Offset']
############Include these all ###########
self.m0 = self.addGen( Wire( 'm0', 'M0', 'v',
clg=UncoloredCenterLineGrid( pitch= p['Feol']['m0Pitch'], width= p['Feol']['m0Width'], offset= p['Feol']['m0Pitch']//2),
spg=EnclosureGrid( pitch=activePitch, offset=activeOffset, stoppoint=activeWidth//2, check=True)))
self.pl = self.addGen( Wire( 'pl', 'poly', 'v',
clg=UncoloredCenterLineGrid( pitch= p['Poly']['Pitch'], width= p['Poly']['Width'], offset= p['Poly']['Offset']),
spg=SingleGrid( offset= p['M2']['Offset'], pitch=self.unitCellHeight)))
self.fin = self.addGen( Wire( 'fin', 'fin', 'h',
clg=UncoloredCenterLineGrid( pitch= p['Fin']['Pitch'], width= p['Fin']['Width'], offset= p['Fin']['Offset']),
spg=SingleGrid( offset=0, pitch=unitCellLength)))
stoppoint = (gateDummy-1)* p['Poly']['Pitch'] + p['Poly']['Offset']
self.active = self.addGen( Wire( 'active', 'active', 'h',
clg=UncoloredCenterLineGrid( pitch=activePitch, width=activeWidth, offset=activeOffset),
spg=EnclosureGrid( pitch=unitCellLength, offset=0, stoppoint=stoppoint, check=True)))
self.RVT = self.addGen( Wire( 'RVT', 'polycon', 'h',
clg=UncoloredCenterLineGrid( pitch=RVTPitch, width=RVTWidth, offset=RVTOffset),
spg=EnclosureGrid( pitch=unitCellLength, offset=0, stoppoint=stoppoint, check=True)))
self.nselect = self.addGen( Region( 'nselect', 'nselect',
v_grid=CenteredGrid( offset= p['Poly']['Pitch']//2, pitch= p['Poly']['Pitch']),
h_grid=self.fin.clg))
self.pselect = self.addGen( Region( 'pselect', 'pselect',
v_grid=CenteredGrid( offset= p['Poly']['Pitch']//2, pitch= p['Poly']['Pitch']),
h_grid=self.fin.clg))
self.nwell = self.addGen( Region( 'nwell', 'nwell',
v_grid=CenteredGrid( offset= p['Poly']['Pitch']//2, pitch= p['Poly']['Pitch']),
h_grid=self.fin.clg))
v0x_offset = p['M2']['Offset'] + (1+finDummy//2)* p['M2']['Pitch']
self.v0 = self.addGen( Via( 'v0', 'V0',
h_clg=CenterLineGrid(),
v_clg=self.m1.clg))
self.v0.h_clg.addCenterLine( 0, p['V0']['WidthY'], False)
for i in range(activeWidth//(2* p['M2']['Pitch'])):
self.v0.h_clg.addCenterLine( v0x_offset+i* 3*p['Fin']['Pitch'], p['V0']['WidthY'], True)
self.v0.h_clg.addCenterLine( self.unitCellHeight, p['V0']['WidthY'], False)
def __init__( self):
super().__init__()
self.finsPerUnitCell = 14
self.m2PerUnitCell = 7
ndPitch = 360
pdPitch = 360
m2Pitch = 720
self.unitCellHeight = self.m2PerUnitCell*m2Pitch
pcPitch = self.unitCellHeight//2
m1Pitch = 864
m1hPitch = m2Pitch
m3Pitch = 720
self.unitCellWidth = 2*m1Pitch
plPitch = m1Pitch
plOffset = plPitch//2
dcPitch = m1Pitch
pcWidth = 200
m1Width = 400
m2Width = 400
m3Width = 400
dcWidth = 200
plWidth = 200
ndWidth = 120
ndPitch = 360
self.pl = self.addGen( Wire( 'pl', 'poly', 'v',
clg=CenterLineGrid(),
spg=EnclosureGrid( pitch=m2Pitch//2, stoppoint=16)))
for i in range(5):
self.pl.clg.addCenterLine( i*plPitch//2, plWidth, i % 2 == 1)
self.pl.clg.semantic()
self.nd = self.addGen( Region( 'nd', 'ndiff',
h_grid=SingleGrid( pitch=ndPitch),
v_grid=self.pl.clg))
self.pd = self.addGen( Region( 'pd', 'pdiff',
h_grid=SingleGrid( pitch=pdPitch),
v_grid=self.pl.clg))
self.pc = self.addGen( Wire( 'pc', 'polycon', 'h',
clg=UncoloredCenterLineGrid( width=pcWidth, pitch=pcPitch),
spg=EnclosureGrid( pitch=dcPitch, stoppoint=plOffset-plWidth//2)))
self.m1 = self.addGen( Wire( 'm1', 'M1', 'v',
clg=UncoloredCenterLineGrid( width=m1Width, pitch=m1Pitch, repeat=2),
spg=EnclosureGrid( pitch=m2Pitch, stoppoint=m2Width//2)))
self.m2 = self.addGen( Wire( 'm2', 'M2', 'h',
clg=UncoloredCenterLineGrid( width=m2Width, pitch=m2Pitch, repeat=self.m2PerUnitCell),
spg=EnclosureGrid( pitch=2*m1Pitch, stoppoint=m1Pitch//2)))
self.m3 = self.addGen( Wire( 'm3', 'M3', 'v',
clg=UncoloredCenterLineGrid( width=m3Width, pitch=m3Pitch),
spg=EnclosureGrid( pitch=self.unitCellHeight, stoppoint=self.unitCellHeight//2-m2Pitch)))
self.dc = self.addGen( Wire( 'dc', 'diffcon', 'v',
clg=CenterLineGrid(),
spg=EnclosureGrid( pitch=m2Pitch//2, stoppoint=0)))
for i in range(5):
self.dc.clg.addCenterLine( i*dcPitch//2, dcWidth, i % 2 == 0)
self.dc.clg.semantic()
self.v0 = self.addGen( Via( 'v0', 'via0', v_clg=self.m1.clg, h_clg=self.pc.clg))
self.v1 = self.addGen( Via( 'v1', 'via1', v_clg=self.m1.clg, h_clg=self.m2.clg))
self.v2 = self.addGen( Via( 'v2', 'via2', v_clg=self.m3.clg, h_clg=self.m2.clg))
def __init__(self):
super().__init__()
self.m1Pitch = 64
self.m1Width = 32
self.m2Pitch_narrow = 64
self.m2Pitch_standard = 84
self.m2Width = 32
self.m3Pitch = 64
self.m3Width = 32
self.v1_xenclosure = 20
self.v1_yenclosure = 20
self.v2_xenclosure = 20
self.v2_yenclosure = 20
self.m1 = self.addGen(
Wire('m1',
'M1',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=self.m1Pitch,
width=self.m1Width),
spg=EnclosureGrid(pitch=self.m2Pitch_standard,
stoppoint=self.v1_yenclosure +
self.m2Width // 2,
check=True)))
self.m2 = self.addGen(
Wire('m2',
'M2',
'h',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=self.m2Pitch_standard,
width=self.m2Width),
spg=EnclosureGrid(pitch=self.m1Pitch,
stoppoint=self.v1_xenclosure +
self.m1Width // 2,
check=False)))
self.m2n = self.addGen(
Wire('m2n',
'M2',
'h',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=self.m2Pitch_narrow,
width=self.m2Width),
spg=EnclosureGrid(pitch=self.m1Pitch,
stoppoint=self.v1_xenclosure +
self.m1Width // 2)))
self.m3 = self.addGen(
Wire('m3',
'M3',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=self.m3Pitch,
width=self.m3Width),
spg=EnclosureGrid(pitch=self.m2Pitch_standard,
stoppoint=self.v2_yenclosure +
self.m2Width // 2,
check=True)))
self.boundary = self.addGen(
Region('nwell', 'nwell', h_grid=self.m2.clg, v_grid=self.m1.clg))
self.v1 = self.addGen(
Via('v1', 'via1', h_clg=self.m2.clg, v_clg=self.m1.clg))
self.v2 = self.addGen(
Via('v2', 'via2', h_clg=self.m2.clg, v_clg=self.m3.clg))
def __init__(self, gate_u, fin_u, fin_u1):
super().__init__()
##### PDK Abstraction #####
self.plPitch = 80 ### Use from DRM
self.plWidth = 14
self.finPitch = 42 ### finPitch from DRM
self.finWidth = 10
self.m0Pitch = self.plPitch
self.m0Width = 34
self.m1Pitch = self.plPitch ### Distance between Source and Drain
self.m1Width = 32
self.m2Pitch = 84 ### Can be directly used from DRM (usually twice of the fin pitch)
self.m2Width = 32
self.m3Pitch = self.plPitch ### Use same as for m1
self.m3Width = 32
self.v0Pitch = 3 * self.finPitch ### V0 spacing rule
self.v0Width = 32
self.plActive_s = 73 ### Active horizontal extension over the Gate
self.plActive = 7
self.v_enclosure = 20
self.fin_enclosure = (self.finPitch -
self.finWidth) // 2 ### Fin enclosure by active
self.active_enclosure = 42
self.finOffset = 0
self.plOffset = 0
self.finDummy = 5 ### Number of dummy fins
self.gateDummy = 3 ### Number of dummy gates
self.gate = int(
round(gate_u + 2 *
self.gateDummy)) #### Total number of gates per unit cell
self.extension_x = (
self.plPitch - self.plWidth
) // 2 ### Minimum horizontal extension of GCUT past GATE
self.activeWidth = self.finPitch * fin_u1
self.activeWidth_h = (
(gate_u - 1) * self.plPitch) + (self.plActive_s * 2) + self.plWidth
self.activePitch = self.finPitch * (fin_u + 2 * self.finDummy)
self.activeOffset = (
self.activeWidth // 2
) + self.finDummy * self.finPitch - self.fin_enclosure - self.finWidth // 2 + self.finOffset
self.RVTWidth = self.activeWidth + 2 * self.active_enclosure
self.RVTPitch = self.activePitch
self.RVTOffset = (
self.RVTWidth // 2
) + self.finDummy * self.finPitch - self.fin_enclosure - self.active_enclosure - self.finWidth // 2 + self.finOffset
self.m0 = self.addGen(
Wire('m0',
'M0',
'v',
clg=UncoloredCenterLineGrid(pitch=self.m0Pitch,
width=self.m0Width,
offset=self.m0Pitch // 2),
spg=EnclosureGrid(pitch=self.activePitch,
offset=self.activeOffset,
stoppoint=self.activeWidth // 2,
check=True)))
self.m1 = self.addGen(
Wire('m1',
'M1',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=self.m1Pitch,
width=self.m1Width,
offset=self.m1Pitch // 2),
spg=EnclosureGrid(pitch=self.m2Pitch,
offset=self.m2Pitch // 2,
stoppoint=self.m2Width // 2 +
self.v_enclosure,
check=True)))
self.m2 = self.addGen(
Wire('m2',
'M2',
'h',
clg=ColoredCenterLineGrid(colors=['c2', 'c1'],
pitch=self.m2Pitch,
width=self.m2Width,
offset=self.m2Pitch // 2),
spg=EnclosureGrid(pitch=self.m1Pitch,
offset=self.m1Pitch // 2,
stoppoint=self.m1Width // 2 +
self.v_enclosure,
check=True)))
self.m3 = self.addGen(
Wire('m3',
'M3',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=self.m3Pitch,
width=self.m3Width,
offset=self.m3Pitch // 2),
spg=EnclosureGrid(pitch=self.m2Pitch,
offset=self.m2Pitch // 2,
stoppoint=self.m2Width // 2 +
self.v_enclosure,
check=True)))
self.pl = self.addGen(
Wire('pl',
'poly',
'v',
clg=UncoloredCenterLineGrid(pitch=self.plPitch,
width=self.plWidth,
offset=self.plOffset),
spg=EnclosureGrid(pitch=self.finPitch,
stoppoint=self.m2Pitch // 2)))
self.fin = self.addGen(
Wire('fin',
'fin',
'h',
clg=UncoloredCenterLineGrid(pitch=self.finPitch,
width=self.finWidth,
offset=self.finOffset),
spg=CenteredGrid(pitch=self.plPitch)))
self.active = self.addGen(
Wire('active',
'active',
'h',
clg=UncoloredCenterLineGrid(pitch=self.activePitch,
width=self.activeWidth,
offset=self.activeOffset),
spg=SingleGrid(pitch=self.plPitch)))
self.RVT = self.addGen(
Wire('RVT',
'polycon',
'h',
clg=UncoloredCenterLineGrid(pitch=self.RVTPitch,
width=self.RVTWidth,
offset=self.RVTOffset),
spg=SingleGrid(pitch=self.plPitch)))
self.nselect = self.addGen(
Region('nselect',
'nselect',
v_grid=CenteredGrid(pitch=self.plPitch),
h_grid=self.fin.clg))
v0x_offset = self.finDummy * self.finPitch - self.fin_enclosure - self.finWidth // 2 + self.finOffset + self.v0Width // 2
self.v0 = self.addGen(
Via('v0',
'via0',
h_clg=UncoloredCenterLineGrid(pitch=self.v0Pitch,
width=self.v0Width,
offset=v0x_offset),
v_clg=self.m1.clg))
self.v1 = self.addGen(
Via('v1', 'via1', h_clg=self.m2.clg, v_clg=self.m1.clg))
self.v2 = self.addGen(
Via('v2', 'via2', h_clg=self.m2.clg, v_clg=self.m3.clg))
def __init__(self, x_length, y_length):
super().__init__()
p = Pdk().load(pdkfile)
self.x_number = int(2 * round(
((x_length + p['Cap']['m1Pitch'] - p['Cap']['m1Width']) /
(2.0 * p['Cap']['m1Pitch']))))
self.y_number = int(2 * round(
((y_length + p['Cap']['m2Pitch'] - p['Cap']['m2Width']) /
(2.0 * p['Cap']['m2Pitch']))))
self.last_y1_track = ((self.y_number - 1) * p['Cap']['m2Pitch'] +
p['M2']['Pitch'] - 1) // p['M2']['Pitch']
self.last_x_track = self.x_number - 1
self.m1 = self.addGen(
Wire('m1',
'M1',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['Cap']['m1Pitch'],
width=p['Cap']['m1Width']),
spg=EnclosureGrid(pitch=p['M2']['Pitch'],
stoppoint=p['V1']['VencA_L'] +
p['Cap']['m2Width'] // 2,
check=True)))
self.m2 = self.addGen(
Wire('m2',
'M2',
'h',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['M2']['Pitch'],
width=p['Cap']['m2Width']),
spg=EnclosureGrid(pitch=p['Cap']['m1Pitch'],
stoppoint=p['V1']['VencA_H'] +
p['Cap']['m1Width'] // 2,
check=False)))
self.m2n = self.addGen(
Wire('m2n',
'M2',
'h',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['Cap']['m2Pitch'],
width=p['Cap']['m2Width']),
spg=EnclosureGrid(pitch=p['Cap']['m1Pitch'],
stoppoint=p['V1']['VencA_H'] +
p['Cap']['m1Width'] // 2)))
self.m3 = self.addGen(
Wire('m3',
'M3',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['Cap']['m3Pitch'],
width=p['Cap']['m3Width']),
spg=EnclosureGrid(pitch=p['M2']['Pitch'],
stoppoint=p['V2']['VencA_H'] +
p['Cap']['m2Width'] // 2,
check=True)))
self.boundary = self.addGen(
Region('boundary',
'boundary',
h_grid=self.m2.clg,
v_grid=self.m1.clg))
self.v1 = self.addGen(
Via('v1', 'V1', h_clg=self.m2.clg, v_clg=self.m1.clg))
self.v2 = self.addGen(
Via('v2', 'V1', h_clg=self.m2.clg, v_clg=self.m3.clg))
def __init__(self):
super().__init__()
self.finsPerUnitCell = 12
# Must be a multiple of 2
assert self.finsPerUnitCell % 2 == 0
# Should be a multiple of 4 for maximum utilization
assert self.finsPerUnitCell % 4 == 0
self.m2PerUnitCell = self.finsPerUnitCell // 2 + 3
m2Pitch = 720
unitCellHeight = self.m2PerUnitCell * m2Pitch
pcPitch = unitCellHeight // 2
m1Pitch = 720
m3Pitch = 720
plPitch = m1Pitch
plOffset = plPitch // 2
dcPitch = 2 * m1Pitch
pcWidth = 200
m1Width = 400
m2Width = 400
m3Width = 400
dcWidth = 200
plWidth = 200
ndWidth = 120
ndPitch = 360
self.nd = self.addGen(
Wire('nd',
'ndiff',
'h',
clg=UncoloredCenterLineGrid(pitch=ndPitch,
width=ndWidth,
repeat=2 * self.m2PerUnitCell),
spg=SingleGrid(pitch=dcPitch)))
self.pc = self.addGen(
Wire('pc',
'polycon',
'h',
clg=UncoloredCenterLineGrid(width=pcWidth, pitch=pcPitch),
spg=EnclosureGrid(pitch=dcPitch,
stoppoint=plOffset - plWidth // 2)))
self.m1 = self.addGen(
Wire('m1',
'M1',
'v',
clg=UncoloredCenterLineGrid(width=m1Width,
pitch=m1Pitch,
repeat=2),
spg=EnclosureGrid(pitch=unitCellHeight,
stoppoint=unitCellHeight // 2 - m2Pitch)))
self.m3 = self.addGen(
Wire('m3',
'M3',
'v',
clg=UncoloredCenterLineGrid(width=m3Width,
pitch=m3Pitch,
repeat=2),
spg=EnclosureGrid(pitch=unitCellHeight,
stoppoint=unitCellHeight // 2 - m2Pitch)))
self.m2 = self.addGen(
Wire('m2',
'M2',
'h',
clg=UncoloredCenterLineGrid(width=m2Width,
pitch=m2Pitch,
repeat=self.m2PerUnitCell),
spg=EnclosureGrid(pitch=2 * m1Pitch, stoppoint=m1Pitch // 2)))
self.pl = self.addGen(
Wire('pl',
'poly',
'v',
clg=UncoloredCenterLineGrid(width=plWidth,
pitch=plPitch,
offset=plOffset,
repeat=2),
spg=EnclosureGrid(pitch=unitCellHeight,
stoppoint=m1Pitch // 2)))
self.dc = self.addGen(
Wire('dc',
'diffcon',
'v',
clg=UncoloredCenterLineGrid(width=dcWidth, pitch=dcPitch),
spg=Grid()))
stoppoint = m1Pitch // 2
self.dc.spg.addGridLine(0, False)
self.dc.spg.addGridLine(stoppoint, True)
self.dc.spg.addGridLine(unitCellHeight // 2 - stoppoint, True)
self.dc.spg.addGridLine(unitCellHeight // 2, False)
self.dc.spg.addGridLine(unitCellHeight // 2 + stoppoint, True)
self.dc.spg.addGridLine(unitCellHeight - stoppoint, True)
self.dc.spg.addGridLine(unitCellHeight, False)
def unit(self, x, y, x_cells, y_cells):
m2factor = 2 ### number of m2-tracks (m2factor-1)in between two unitcells in y-direction
m1factor = 3
if (self.y_number - 1) % 2 != self.last_y1_track % 2:
self.last_y1_track += 1 # so the last color is compatible with the external view of the cell
if self.last_y1_track % 2 == 1:
m2factor += 1 # so colors match in arrayed blocks
grid_cell_x_pitch = m1factor + self.last_x_track
grid_cell_y_pitch = m2factor + self.last_y1_track
#print( "last_x_track (m1Pitches)", last_x_track, "last_y1_track (m2Pitch_standards)", last_y1_track)
#gcd = math.gcd( self.m2Pitch_narrow, self.m2Pitch_standard)
#print( "GCD,LCM,(LCM in m2Pitch_narrowes),(LCM in m2Pitch_standards) of m2Pitch_narrow (minimum) and m2Pitch_standard (devices)", gcd, self.m2Pitch_narrow, self.m2Pitch_standard, (self.m2Pitch_narrow*self.m2Pitch_standard)//gcd, self.m2Pitch_standard//gcd, self.m2Pitch_narrow//gcd)
grid_y0 = y * grid_cell_y_pitch
grid_y1 = grid_y0 + self.last_y1_track
for i in range(x_number):
(k, p) = (2 * i, 1) if x_number == 2 else (i, 0)
grid_x = k + x * grid_cell_x_pitch
self.addWire(self.m1, 'M1', None, grid_x, (grid_y0, -1),
(grid_y1, 1))
if i < x_number - 1:
grid_yh = ((i + 1) % 2) * self.last_y1_track
self.addWire(self.m1h, 'M1', None, grid_yh, (i, -1),
(i + p + 1, 1))
#
# Build the narrow m2 pitch grid starting at grid_cell_y_pitch*y in standard m2 pitch grids (m2.clg)
#
m2n = Wire(self.m2n.nm,
self.m2n.layer,
self.m2n.direction,
clg=self.m2n.clg.copyShift(
self.m2.clg.value(grid_cell_y_pitch * y)[0]),
spg=self.m2n.spg)
#v1n = Via( 'v1', 'via1', h_clg=m2n.clg, v_clg=self.m1.clg)
#v2n = Via( 'v2', 'via2', h_clg=m2n.clg, v_clg=self.m3.clg)
grid_x0 = x * grid_cell_x_pitch
grid_x1 = grid_x0 + self.last_x_track
grid_y = (x_number % 2) * self.last_y1_track
pin = 'PLUS'
self.addWire(m2n, 'PLUS', pin, 0, (0, -1), (0, 1))
self.addVia(self.v1, 'V1', None, 0, 0)
pin = 'MINUS'
self.addWire(self.m2, 'MINUS', pin, grid_y, (grid_x1 + p, -1),
(grid_x1 + p, 1))
self.addVia(self.v1, 'V1', None, grid_x1 + p, grid_y)
if x == x_cells - 1 and y == y_cells - 1:
self.addRegion(self.boundary, 'boundary', None, -1, -1,
self.last_x_track + x * grid_cell_x_pitch + 1 + p,
self.last_y1_track + y * grid_cell_y_pitch + 1)
def __init__(self, x_number, y_length):
super().__init__()
p = Pdk().load(pdkfile)
ga = 2 if x_number == 1 else 1 ## when number of wires is 2 then large spacing req. so contact can be placed without a DRC error
self.x_length = (x_number - 1) * ga * p['Cap']['m1Pitch']
self.y_number = int(2 * round(
((y_length + p['Cap']['m2Pitch'] - p['Cap']['m2Width']) /
(2.0 * p['Cap']['m2Pitch']))))
self.last_y1_track = ((self.y_number - 1) * p['Cap']['m2Pitch'] +
p['M2']['Pitch'] - 1) // p['M2']['Pitch']
self.last_x_track = x_number - 1
self.m1 = self.addGen(
Wire('m1',
'M1',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['Cap']['m1Pitch'],
width=p['Cap']['m1Width']),
spg=EnclosureGrid(pitch=p['M2']['Pitch'],
stoppoint=p['V1']['VencA_L'] +
p['Cap']['m2Width'] // 2,
check=True)))
self.m1h = self.addGen(
Wire('m1h',
'M1',
'h',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['M2']['Pitch'],
width=p['Cap']['m1Width']),
spg=EnclosureGrid(pitch=p['Cap']['m1Pitch'],
stoppoint=p['Cap']['m1Width'] // 2,
check=False)))
self.m2 = self.addGen(
Wire('m2',
'M2',
'h',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['M2']['Pitch'],
width=p['Cap']['m2Width']),
spg=EnclosureGrid(pitch=p['Cap']['m1Pitch'],
stoppoint=p['V1']['VencA_H'] +
p['Cap']['m1Width'] // 2,
check=False)))
self.m2n = self.addGen(
Wire('m2n',
'M2',
'h',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['Cap']['m2Pitch'],
width=p['Cap']['m2Width']),
spg=EnclosureGrid(pitch=p['Cap']['m1Pitch'],
stoppoint=p['V1']['VencA_H'] +
p['Cap']['m1Width'] // 2)))
self.m3 = self.addGen(
Wire('m3',
'M3',
'v',
clg=ColoredCenterLineGrid(colors=['c1', 'c2'],
pitch=p['Cap']['m3Pitch'],
width=p['Cap']['m3Width']),
spg=EnclosureGrid(pitch=p['M2']['Pitch'],
stoppoint=p['V2']['VencA_H'] +
p['Cap']['m2Width'] // 2,
check=True)))
self.boundary = self.addGen(
Region('boundary',
'boundary',
h_grid=self.m2.clg,
v_grid=self.m1.clg))
self.v1 = self.addGen(
Via('v1', 'V1', h_clg=self.m2.clg, v_clg=self.m1.clg))
self.v2 = self.addGen(
Via('v2', 'V2', h_clg=self.m2.clg, v_clg=self.m3.clg))
def unit(self, x, y, x_length, y_length, x_cells, y_cells):
m2factor = 2 ### number of m2-tracks (m2factor-1)in between two unitcells in y-direction
m1factor = 3
x_number = int(2 * round(
((x_length + self.m1Pitch - self.m1Width) / (2.0 * self.m1Pitch))))
y_number = int(2 * round(
((y_length + self.m2Pitch_narrow - self.m2Width) /
(2.0 * self.m2Pitch_narrow))))
print("x_number, y_number:", x_number, y_number)
last_y1_track = ((y_number - 1) * self.m2Pitch_narrow +
self.m2Pitch_standard - 1) // self.m2Pitch_standard
last_x_track = x_number - 1
if (y_number - 1) % 2 != last_y1_track % 2:
last_y1_track += 1 # so the last color is compatible with the external view of the cell
if last_y1_track % 2 == 1:
m2factor += 1 # so colors match in arrayed blocks
grid_cell_x_pitch = m1factor + last_x_track
grid_cell_y_pitch = m2factor + last_y1_track
print("last_x_track (m1Pitches)", last_x_track,
"last_y1_track (m2Pitch_standards)", last_y1_track)
gcd = math.gcd(self.m2Pitch_narrow, self.m2Pitch_standard)
print(
"GCD,LCM,(LCM in m2Pitch_narrowes),(LCM in m2Pitch_standards) of m2Pitch_narrow (minimum) and m2Pitch_standard (devices)",
gcd, self.m2Pitch_narrow, self.m2Pitch_standard,
(self.m2Pitch_narrow * self.m2Pitch_standard) // gcd,
self.m2Pitch_standard // gcd, self.m2Pitch_narrow // gcd)
grid_y0 = y * grid_cell_y_pitch
grid_y1 = grid_y0 + last_y1_track
for i in range(x_number):
grid_x = i + x * grid_cell_x_pitch
net = 'PLUS' if i % 2 == 1 else 'MINUS'
self.addWire(self.m1, net, None, grid_x, (grid_y0, -1),
(grid_y1, 1))
self.addWire(self.m3, net, None, grid_x, (grid_y0, -1),
(grid_y1, 1))
grid_y = ((i + 1) % 2) * last_y1_track + grid_y0
self.addVia(self.v1, net, None, grid_x, grid_y)
self.addVia(self.v2, net, None, grid_x, grid_y)
#
# Build the narrow m2 pitch grid starting at grid_cell_y_pitch*y in standard m2 pitch grids (m2.clg)
#
m2n = Wire(self.m2n.nm,
self.m2n.layer,
self.m2n.direction,
clg=self.m2n.clg.copyShift(
self.m2.clg.value(grid_cell_y_pitch * y)[0]),
spg=self.m2n.spg)
v1n = Via('v1', 'via1', h_clg=m2n.clg, v_clg=self.m1.clg)
v2n = Via('v2', 'via2', h_clg=m2n.clg, v_clg=self.m3.clg)
grid_x0 = x * grid_cell_x_pitch
grid_x1 = grid_x0 + last_x_track
for i in range(y_number - 1):
grid_x = x * grid_cell_x_pitch + ((i + 1) % 2) * (x_number - 1)
pin = 'PLUS' if y == 0 and x == 0 and i == 0 else None
net = 'PLUS' if i % 2 == 0 else 'MINUS'
self.addVia(v1n, net, None, grid_x, i)
self.addVia(v2n, net, None, grid_x, i)
self.addWire(m2n, net, pin, i, (grid_x0, -1), (grid_x1, 1))
grid_y = last_y1_track + grid_cell_y_pitch * y
pin = 'MINUS'
self.addWire(self.m2, 'MINUS', pin, grid_y, (grid_x0, -1),
(grid_x1, 1))
if x == x_cells - 1 and y == y_cells - 1:
self.addRegion(self.boundary, 'boundary', None, -1, -1,
last_x_track + x * grid_cell_x_pitch + 1,
last_y1_track + y * grid_cell_y_pitch + 1)
def test_one():
c = Canvas()
m1 = c.addGen(
Wire(nm='m1',
layer='M1',
direction='v',
clg=UncoloredCenterLineGrid(width=320,
pitch=720,
offset=2 * 720,
repeat=20),
spg=EnclosureGrid(pitch=720, stoppoint=360)))
m2 = c.addGen(
Wire(nm='m2',
layer='M2',
direction='h',
clg=UncoloredCenterLineGrid(width=400,
pitch=720,
offset=720,
repeat=10),
spg=EnclosureGrid(pitch=720, stoppoint=360)))
v1 = c.addGen(Via(nm='v1', layer='via1', h_clg=m2.clg, v_clg=m1.clg))
m3 = c.addGen(
Wire(nm='m3',
layer='M3',
direction='v',
clg=UncoloredCenterLineGrid(width=400,
pitch=720,
offset=2 * 720,
repeat=20),
spg=EnclosureGrid(pitch=720, stoppoint=360)))
v2 = c.addGen(Via(nm='v2', layer='via2', h_clg=m2.clg, v_clg=m3.clg))
ch = 5
for base in [0, ch]:
c.addWire(m1, 'S', None, 0, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m1, 'S', None, 6, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m1, 'S', None, 12, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m1, 'S', None, 18, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m1, 'DA', None, 2, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m1, 'DA', None, 20, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m1, 'DB', None, 8, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m1, 'DB', None, 14, (base + 1, 1), (base + ch + 1, -1))
c.addWire(m2, 'GND', None, 0 + base, (0, 1), (24, -1))
c.addWireAndViaSet('S', None, m2, v1, 1 + base, [0, 6, 12, 18])
c.addWireAndViaSet('DA', None, m2, v1, 2 + base, [2, 20])
c.addWireAndViaSet('DB', None, m2, v1, 3 + base, [8, 14])
c.addWireAndViaSet('S', 'S', m3, v2, 5, [1, ch + 1])
c.addWireAndViaSet('DA', 'DA', m3, v2, 4, [2, ch + 2])
c.addWireAndViaSet('DB', 'DB', m3, v2, 9, [3, ch + 3])
fn = "tests/__json_diff_pair"
print(c.terminals)
with open(fn + "_cand", "wt") as fp:
data = c.writeJSON(fp)
with open(fn + "_gold", "rt") as fp:
data2 = json.load(fp)
assert data == data2