123 lines
2.8 KiB
Plaintext
123 lines
2.8 KiB
Plaintext
CMOS Ring Oscillator
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Vdd 1 0 5.0v
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Vss 2 0 0.0v
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X1 1 2 3 4 INV
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X2 1 2 4 5 INV
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X3 1 2 5 3 INV
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*X4 1 2 6 7 INV
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*X5 1 2 7 8 INV
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*X6 1 2 8 9 INV
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*X7 1 2 9 3 INV
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.IC V(3)=0.0v V(4)=2.5v V(5)=5.0v
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* V(6)=0.0v V(7)=5.0v V(8)=0.0v V(9)=5.0v
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Vin 3 0 2.5v
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.SUBCKT INV 1 2 3 4
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* Vdd Vss Vin Vout
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M1 14 13 15 16 M_PMOS w=6.0u
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M2 24 23 25 26 M_NMOS w=3.0u
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Vgp 3 13 0.0v
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Vdp 4 14 0.0v
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Vsp 1 15 0.0v
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Vbp 1 16 0.0v
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Vgn 3 23 0.0v
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Vdn 4 24 0.0v
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Vsn 2 25 0.0v
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Vbn 2 26 0.0v
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.ENDS INV
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.model M_NMOS numos
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+ x.mesh l=0.0 n=1
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+ x.mesh l=0.6 n=4
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+ x.mesh l=0.7 n=5
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+ x.mesh l=1.0 n=7
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+ x.mesh l=1.2 n=11
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+ x.mesh l=3.2 n=21
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+ x.mesh l=3.4 n=25
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+ x.mesh l=3.7 n=27
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+ x.mesh l=3.8 n=28
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+ x.mesh l=4.4 n=31
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+
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+ y.mesh l=-.05 n=1
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+ y.mesh l=0.0 n=5
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+ y.mesh l=.05 n=9
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+ y.mesh l=0.3 n=14
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+ y.mesh l=2.0 n=19
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+
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+ region num=1 material=1 y.l=0.0
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+ material num=1 silicon
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+ mobility material=1 concmod=sg fieldmod=sg
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+ mobility material=1 elec major
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+ mobility material=1 elec minor
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+ mobility material=1 hole major
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+ mobility material=1 hole minor
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+
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+ region num=2 material=2 y.h=0.0 x.l=0.7 x.h=3.7
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+ material num=2 oxide
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+
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+ elec num=1 x.l=3.8 x.h=4.4 y.l=0.0 y.h=0.0
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+ elec num=2 x.l=0.7 x.h=3.7 iy.l=1 iy.h=1
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+ elec num=3 x.l=0.0 x.h=0.6 y.l=0.0 y.h=0.0
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+ elec num=4 x.l=0.0 x.h=4.4 y.l=2.0 y.h=2.0
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+
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+ doping unif p.type conc=2.5e16 x.l=0.0 x.h=4.4 y.l=0.0 y.h=2.0
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+ doping unif p.type conc=1e16 x.l=0.0 x.h=4.4 y.l=0.0 y.h=0.05
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+ doping unif n.type conc=1e20 x.l=0.0 x.h=1.1 y.l=0.0 y.h=0.2
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+ doping unif n.type conc=1e20 x.l=3.3 x.h=4.4 y.l=0.0 y.h=0.2
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+
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+ models concmob fieldmob bgn srh conctau
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+ method ac=direct onec
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.model M_PMOS numos
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+ x.mesh l=0.0 n=1
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+ x.mesh l=0.6 n=4
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+ x.mesh l=0.7 n=5
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+ x.mesh l=1.0 n=7
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+ x.mesh l=1.2 n=11
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+ x.mesh l=3.2 n=21
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+ x.mesh l=3.4 n=25
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+ x.mesh l=3.7 n=27
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+ x.mesh l=3.8 n=28
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+ x.mesh l=4.4 n=31
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+
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+ y.mesh l=-.05 n=1
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+ y.mesh l=0.0 n=5
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+ y.mesh l=.05 n=9
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+ y.mesh l=0.3 n=14
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+ y.mesh l=2.0 n=19
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+
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+ region num=1 material=1 y.l=0.0
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+ material num=1 silicon
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+ mobility material=1 concmod=sg fieldmod=sg
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+ mobility material=1 elec major
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+ mobility material=1 elec minor
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+ mobility material=1 hole major
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+ mobility material=1 hole minor
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+
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+ region num=2 material=2 y.h=0.0 x.l=0.7 x.h=3.7
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+ material num=2 oxide
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+
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+ elec num=1 x.l=3.8 x.h=4.4 y.l=0.0 y.h=0.0
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+ elec num=2 x.l=0.7 x.h=3.7 iy.l=1 iy.h=1
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+ elec num=3 x.l=0.0 x.h=0.6 y.l=0.0 y.h=0.0
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+ elec num=4 x.l=0.0 x.h=4.4 y.l=2.0 y.h=2.0
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+
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+ doping unif n.type conc=1e16 x.l=0.0 x.h=4.4 y.l=0.0 y.h=2.0
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+ doping unif p.type conc=3e16 x.l=0.0 x.h=4.4 y.l=0.0 y.h=0.05
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+ doping unif p.type conc=1e20 x.l=0.0 x.h=1.1 y.l=0.0 y.h=0.2
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+ doping unif p.type conc=1e20 x.l=3.3 x.h=4.4 y.l=0.0 y.h=0.2
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+
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+ models concmob fieldmob bgn srh conctau
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+ method ac=direct onec
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.tran 0.1ns 5ns
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.print v(4)
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.options acct bypass=1 method=gear
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.end
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