001_mos_op : MOS OP point
Requires: SmartSpice & Smartview
Minimum Versions: SMARTSPICE 3.16.12.R
In this input deck a simple MOS level=3 device is optimized against a DATA set for a DC family of curves and the final errorlimits reported in the output log window. The optimizing parameters are: RS, RD, LD, NSUB, VTO, UO, VMAX, XJ, ETA and THETA with their defined limits set in the input deck for this simple MOS model. The final set of DC sweeps for optimized vs target are shown in plot .
Doing an optimization of the rise and fall of a simple inverter circuit this input deck uses a basic NMOS and PMOS level 3 device to form an inverter. An optimization is done on the rise and fall times for this inverter circuit over a variation in supply voltage and the resulting plot shows the final waveforms and the data printed in the output log window of the GUI.
Input Files
opMOS3.in
** MOSFET Level 3 * i(vds) Optimization *****Circuit vgs 2 0 vds 1 3 vdss 0 3 DC 0 vbs 4 0 0 m1 1 2 0 4 nm W= 5E-05 L= 2E-06 NRD= 4E-02 NRS= 4E-02 ***** MOSFET model definition .MODEL nm NMOS ( TOX = 5E-8 + RS = 2 RD = 2 LD = 1E-7 + WD = 0 NSUB = 1E16 VTO = 0.8 + UO = 626 VMAX = 2e6 XJ = 3E-7 + ETA = 0.02 THETA = 0.03 NFS = 3E11 + IS = 1.78E-16 CJ = 4.550487E-5 PB = 0.6172644 + MJ = 0.4086356 FC = 0.5 CJSW = 1.876352E-10 + MJSW = 0.4232647 CGSO = 1E-9 CGDO = 1E-9 + CGBO = 1E-9 LEVEL = 3 ) ***** Analysis and Measure statements .DC vds 0 5.0 0.2 vgs 1.0 5.0 1.0 .MEAS DC differr ERR2 targ i(vdss) VAL=1.e-4 NEST=-1 ***** Optimization specification .MODIF + OPTIMIZE + nm(RS) = OPT(0.01 100 2) + nm(RD) = OPT(0.01 100 2) + nm(LD) = OPT(1e-9 2e-6 1e-7) + nm(NSUB) = OPT(1e15 1e17 1e16) + nm(VTO) = OPT(0.333 2.0 0.8) + nm(UO) = OPT(100 800 626) + nm(VMAX) = OPT(1e4 1e7 2e6) + nm(XJ) = OPT(2e-7 3e-6 3e-7) + nm(ETA) = OPT(1e-4 5.0 0.02) + nm(THETA) = OPT(1.e-4 1 0.03) + TARGETS differr=0.01 + OPTIONS NUMITER=25 IPLOFF=1 MEASOFF=1 * .IPLOT i(vdss) targ .OPTIONS iplot_one nomod ***** Measured curves .DATA i_vds_data + vds targ + 0 1E-25 + 0.1 1.0766E-7 + 0.2 1.0797E-7 + 0.3 1.0828E-7 + 0.4 1.0859E-7 + 0.5 1.089E-7 + 0.6 1.0921E-7 + 0.7 1.0953E-7 + 0.8 1.0984E-7 + 0.9 1.1015E-7 + 1 1.1047E-7 + 1.1 1.1079E-7 + 1.2 1.1111E-7 + 1.3 1.1142E-7 + 1.4 1.1174E-7 + 1.5 1.1207E-7 + 1.6 1.1239E-7 + 1.7 1.1271E-7 + 1.8 1.1303E-7 + 1.9 1.1336E-7 + 2 1.1368E-7 + 2.1 1.1401E-7 + 2.2 1.1434E-7 + 2.3 1.1466E-7 + 2.4 1.1499E-7 + 2.5 1.1532E-7 + 2.6 1.1565E-7 + 2.7 1.1599E-7 + 2.8 1.1632E-7 + 2.9 1.1665E-7 + 3 1.1699E-7 + 3.1 1.1732E-7 + 3.2 1.1766E-7 + 3.3 1.18E-7 + 3.4 1.1834E-7 + 3.5 1.1868E-7 + 3.6 1.1902E-7 + 3.7 1.1936E-7 + 3.8 1.197E-7 + 3.9 1.2004E-7 + 4 1.2039E-7 + 4.1 1.2073E-7 + 4.2 1.2108E-7 + 4.3 1.2143E-7 + 4.4 1.2178E-7 + 4.5 1.2213E-7 + 4.6 1.2248E-7 + 4.7 1.2283E-7 + 4.8 1.2318E-7 + 4.9 1.2353E-7 + 5 1.2389E-7 + 0 1E-25 + 0.1 9.3137E-5 + 0.2 1.731E-4 + 0.3 2.3991E-4 + 0.4 2.936E-4 + 0.5 3.342E-4 + 0.6 3.6173E-4 + 0.7 3.7621E-4 + 0.8 3.787E-4 + 0.9 3.7882E-4 + 1 3.7895E-4 + 1.1 3.7908E-4 + 1.2 3.7921E-4 + 1.3 3.7934E-4 + 1.4 3.7946E-4 + 1.5 3.7959E-4 + 1.6 3.7972E-4 + 1.7 3.7985E-4 + 1.8 3.7998E-4 + 1.9 3.801E-4 + 2 3.8023E-4 + 2.1 3.8036E-4 + 2.2 3.8049E-4 + 2.3 3.8062E-4 + 2.4 3.8075E-4 + 2.5 3.8087E-4 + 2.6 3.81E-4 + 2.7 3.8113E-4 + 2.8 3.8126E-4 + 2.9 3.8139E-4 + 3 3.8151E-4 + 3.1 3.8164E-4 + 3.2 3.8177E-4 + 3.3 3.819E-4 + 3.4 3.8203E-4 + 3.5 3.8216E-4 + 3.6 3.8229E-4 + 3.7 3.8241E-4 + 3.8 3.8254E-4 + 3.9 3.8267E-4 + 4 3.828E-4 + 4.1 3.8293E-4 + 4.2 3.8306E-4 + 4.3 3.8319E-4 + 4.4 3.8331E-4 + 4.5 3.8344E-4 + 4.6 3.8357E-4 + 4.7 3.837E-4 + 4.8 3.8383E-4 + 4.9 3.8396E-4 + 5 3.8409E-4 + 0 1E-25 + 0.1 1.9906E-4 + 0.2 3.85E-4 + 0.3 5.5783E-4 + 0.4 7.176E-4 + 0.5 8.6431E-4 + 0.6 9.98E-4 + 0.7 1.1187E-3 + 0.8 1.2264E-3 + 0.9 1.3212E-3 + 1 1.403E-3 + 1.1 1.472E-3 + 1.2 1.5281E-3 + 1.3 1.5713E-3 + 1.4 1.6017E-3 + 1.5 1.6193E-3 + 1.6 1.6243E-3 + 1.7 1.6246E-3 + 1.8 1.6248E-3 + 1.9 1.6251E-3 + 2 1.6253E-3 + 2.1 1.6256E-3 + 2.2 1.6259E-3 + 2.3 1.6261E-3 + 2.4 1.6264E-3 + 2.5 1.6267E-3 + 2.6 1.6269E-3 + 2.7 1.6272E-3 + 2.8 1.6274E-3 + 2.9 1.6277E-3 + 3 1.628E-3 + 3.1 1.6282E-3 + 3.2 1.6285E-3 + 3.3 1.6288E-3 + 3.4 1.629E-3 + 3.5 1.6293E-3 + 3.6 1.6295E-3 + 3.7 1.6298E-3 + 3.8 1.6301E-3 + 3.9 1.6303E-3 + 4 1.6306E-3 + 4.1 1.6309E-3 + 4.2 1.6311E-3 + 4.3 1.6314E-3 + 4.4 1.6316E-3 + 4.5 1.6319E-3 + 4.6 1.6322E-3 + 4.7 1.6324E-3 + 4.8 1.6327E-3 + 4.9 1.633E-3 + 5 1.6332E-3 + 0 1E-25 + 0.1 3.0207E-4 + 0.2 5.9105E-4 + 0.3 8.6699E-4 + 0.4 1.1299E-3 + 0.5 1.3798E-3 + 0.6 1.6168E-3 + 0.7 1.8408E-3 + 0.8 2.0519E-3 + 0.9 2.25E-3 + 1 2.4354E-3 + 1.1 2.6078E-3 + 1.2 2.7675E-3 + 1.3 2.9143E-3 + 1.4 3.0484E-3 + 1.5 3.1697E-3 + 1.6 3.2783E-3 + 1.7 3.3742E-3 + 1.8 3.4574E-3 + 1.9 3.528E-3 + 2 3.5859E-3 + 2.1 3.6312E-3 + 2.2 3.664E-3 + 2.3 3.6842E-3 + 2.4 3.6918E-3 + 2.5 3.6922E-3 + 2.6 3.6926E-3 + 2.7 3.693E-3 + 2.8 3.6934E-3 + 2.9 3.6938E-3 + 3 3.6942E-3 + 3.1 3.6946E-3 + 3.2 3.695E-3 + 3.3 3.6954E-3 + 3.4 3.6958E-3 + 3.5 3.6962E-3 + 3.6 3.6966E-3 + 3.7 3.697E-3 + 3.8 3.6973E-3 + 3.9 3.6977E-3 + 4 3.6981E-3 + 4.1 3.6985E-3 + 4.2 3.6989E-3 + 4.3 3.6993E-3 + 4.4 3.6997E-3 + 4.5 3.7001E-3 + 4.6 3.7005E-3 + 4.7 3.7009E-3 + 4.8 3.7013E-3 + 4.9 3.7017E-3 + 5 3.7021E-3 + 0 1E-25 + 0.1 4.0226E-4 + 0.2 7.915E-4 + 0.3 1.1677E-3 + 0.4 1.531E-3 + 0.5 1.8814E-3 + 0.6 2.2188E-3 + 0.7 2.5433E-3 + 0.8 2.855E-3 + 0.9 3.1538E-3 + 1 3.4398E-3 + 1.1 3.713E-3 + 1.2 3.9734E-3 + 1.3 4.2211E-3 + 1.4 4.4561E-3 + 1.5 4.6784E-3 + 1.6 4.888E-3 + 1.7 5.0849E-3 + 1.8 5.2692E-3 + 1.9 5.441E-3 + 2 5.6001E-3 + 2.1 5.7467E-3 + 2.2 5.8808E-3 + 2.3 6.0023E-3 + 2.4 6.1114E-3 + 2.5 6.208E-3 + 2.6 6.2921E-3 + 2.7 6.3639E-3 + 2.8 6.4232E-3 + 2.9 6.4701E-3 + 3 6.5047E-3 + 3.1 6.527E-3 + 3.2 6.537E-3 + 3.3 6.5379E-3 + 3.4 6.5384E-3 + 3.5 6.539E-3 + 3.6 6.5395E-3 + 3.7 6.54E-3 + 3.8 6.5405E-3 + 3.9 6.5411E-3 + 4 6.5416E-3 + 4.1 6.5421E-3 + 4.2 6.5426E-3 + 4.3 6.5432E-3 + 4.4 6.5437E-3 + 4.5 6.5442E-3 + 4.6 6.5448E-3 + 4.7 6.5453E-3 + 4.8 6.5458E-3 + 4.9 6.5463E-3 + 5 6.5469E-3 .END
log_diff_error
RESULTS OF OPTIMIZATION PARAMETERS name final value init. value -------------------- ------------ ------------ nm(rs) = 1.81452e+000 2.00000e+000 nm(rd) = 1.67112e+000 2.00000e+000 nm(ld) = 9.97810e-008 1.00000e-007 nm(nsub) = 9.07262e+015 1.00000e+016 nm(vto) = 1.17350e+000 8.00000e-001 nm(uo) = 6.24629e+002 6.26000e+002 nm(vmax) = 2.18548e+006 2.00000e+006 nm(xj) = 2.00000e-007 3.00000e-007 nm(eta) = 1.25611e-002 2.00000e-002 nm(theta) = 2.72178e-002 3.00000e-002
mod1.in
Parametric analysis ***** Circuit description vcc vss 0 DC vccDC vin inp 0 PULSE(0 3 0 trtf trtf 10ns 40ns) m1 2 inp vss vss pm w=wp l=1.6u m2 2 inp 0 0 nm w=30u l=2.0u cout 2 0 50ff .MODEL pm PMOS ( level=3 tox=.02e-6 + phi=0.576 gamma=0 vto=0 alpha=0 kappa=0) .model nm NMOS ( level=3 tox=.02e-6 + phi=0.576 gamma=0 vto=0 alpha=0 kappa=0) ***** Analysis statement .TRAN 0.1ns 25ns ***** Measure statements .MEASURE TRAN delrise DELAY v(inp) RISE=1 VAL=1.5 + TARG=v(2) FALL=1 VAL='0.5*vccDC' .MEASURE TRAN maxv2 MAX v(2) .MEASURE TRAN delfall DELAY v(inp) FALL=1 VAL=1.5 + TARG=v(2) RISE=1 VAL='0.5*maxv2' ***** Parameter labels .PARAM vccDC= 5V wp=4.9u trtf=1ns ***** Parametric analysis specification .MODIF proff prtbl m2(w)=32.6u LOOP=6 vccDC+=(4.5)0.1v +MODIF proff prtbl TEMP=75 LOOP=6 vccDC+=(4.5)0.1v .options nomod .END
parameter_measurements
TABLE OF RESULTS FOR SET #1
PARAMETERS and MEASUREMENTS
m2(w) vccdc delrise maxv2 delfall
------------ ------------ ------------ ------------ ------------
1 3.2600e-005 4.5000e+000 2.4723e-011 4.5067e+000 1.8734e-010
2 3.2600e-005 4.6000e+000 3.4061e-011 4.6066e+000 1.8112e-010
3 3.2600e-005 4.7000e+000 4.3486e-011 4.7066e+000 1.7822e-010
4 3.2600e-005 4.8000e+000 5.2992e-011 4.8065e+000 1.7475e-010
5 3.2600e-005 4.9000e+000 6.2271e-011 4.9064e+000 1.6686e-010
6 3.2600e-005 5.0000e+000 7.1588e-011 5.0064e+000 1.5653e-010
TABLE OF RESULTS FOR SET #2
PARAMETERS and MEASUREMENTS
temp vccdc delrise maxv2 delfall
------------ ------------ ------------ ------------ ------------
1 7.5000e+001 4.5000e+000 3.1470e-011 4.5041e+000 2.0784e-010
2 7.5000e+001 4.6000e+000 4.0800e-011 4.6040e+000 2.0012e-010
3 7.5000e+001 4.7000e+000 5.0212e-011 4.7040e+000 1.9326e-010
4 7.5000e+001 4.8000e+000 5.9248e-011 4.8040e+000 1.8748e-010
5 7.5000e+001 4.9000e+000 6.7632e-011 4.9040e+000 1.8781e-010
6 7.5000e+001 5.0000e+000 7.5901e-011 5.0040e+000 1.8382e-010
001_mos_op
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Graphics
