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Problem simulating Spice Netlist with Spectre

Oriba

Hello,

Recently i tried to simulate the following Spice netList with Spectre:( by : spectre filename.sp)

 simulator lang = spice
.SUBCKT modelmemristor plus minus PARAMS:

+phio=0.95 Lm=0.0998 w1=0.1261 foff=3.5e-6
+ioff=115e-6 aoff=1.2 fon=40e-6 ion=8.9e-6
+aon=1.8 b=500e-6 wc=107e-3
G1 plus internal value={sgn(V(x))*(1/V(dw))^2*0.0617*(V(phiI)*exp(-V(B)*V(sr))-(V(phiI)+abs(V(x)))*exp(-V(B)*V(sr2)))}
Esr sr 0 value={sqrt(V(phiI))}
Esr2 sr2 0 value={sqrt(V(phiI)+abs(V(x)))}
Rs internal minus 215
Eg x 0 value={V(plus)-V(internal)}
Elamda Lmda 0 value={Lm/V(w)}
Ew2 w2 0 value={w1+V(w)-(0.9183/(2.85+4*V(Lmda)-2*abs(V(x))))}
EDw dw 0 value={V(w2)-w1}
EB B 0 value={10.246*V(dw)}
ER R 0 value={(V(w2)/w1)*(V(w)-w1)/(V(w)-V(w2))}
EphiI phiI 0 value={phio-abs(V(x))*((w1+V(w2))/(2*V(w)))-1.15*V(Lmda)*V(w)*log(V(R))/V(dw)}
C1 w 0 1e-9 IC=1.2
R w 0 1e8MEG
Ec c 0 value={abs(V(internal)-V(minus))/215}
Emon1 mon1 0 value={((V(w)-aoff)/wc)-(V(c)/b)}
Emon2 mon2 0 value={(aon-V(w))/wc-(V(c)/b)}
Goff 0 w value={foff*sinh(stp(V(x))*V(c)/ioff)*exp(-exp(V(mon1))-V(w)/wc)}
Gon w 0 value={fon*sinh(stp(-V(x))*V(c)/ion)*exp(-exp(V(mon2))-V(w)/wc)}
.ENDS modelmemristor

 When doing so, i got the following errors:

 Error found by spectre in `modelmemristor', during circuit read-in.
    ERROR (SFE-1815): "Mem.sp" 2: Missing value for parameter `G1' in
        subcircuit definition `modelmemristor'.
    ERROR (SFE-662): "Mem.sp" 2: Badly formed subcircuit definition
        `modelmemristor'.

I looked a littel bit and tried to change the G1 parameter to the following:

G1 plus internal 0 xx value={sgn(V(x))*(1/V(dw))^2*0.0617*(V(phiI)*exp(-V(B)*V(sr))-(V(phiI)+abs(V(x)))*exp(-V(B)*V(sr2)))}
Exx xx 0 1

But still same Errors..
Can anyway know what is the problem??
My final goal is to attach this netlist to a symbol so i can use it in virtuoso.
Thanks

Parents

  •  Hello, Andrew! I think, I have similar problem simulating the following model in spectre:

     .SUBCKT IPD100N06S4 drain gate source Tj Tcase PARAMS: dVth=0 dRdson=0 dgfs=0 dC=0 Zthtype=0 Ls=1.5n Ld=1n Lg=3n

    .PARAM Rs=659u      Rg=1.3       Rd=50u       Rm=180u
    .PARAM Inn=90       Unn=10       Rmax=3.5m    gmin=60
    .PARAM RRf=390m     Rrbond=12m   Rtb=5.5      g2=758m
    .PARAM act=9.3

    .FUNC   Pb(I,dT,Rb)  {Rb/(2*Rtb)*(I-limit(dT/(max(I,1n)*Rb)+RRf*I*g2,0,I))**2}

    X1  d1 g s Tj S4_60_o_var PARAMS: a={act} dVth={dVth} dR={dRdson} dgfs={dgfs} Inn={Inn} Unn={Unn}
                                            +Rmax={Rmax} gmin={gmin} Rs={Rs} Rp={Rd} dC={dC} Rm={Rm}
    Rg    g1     g    {Rg}   
    Lg    gate   g1   {Lg*if(dgfs==99,0,1)}
    Gs    s1     s    VALUE={V(s1,s)/(Rs*(1+(limit(V(Tj),-200,999)-25)*4m)-Rm)}
    Rsa   s1     s    1Meg
    Ls    source s1   {Ls*if(dgfs==99,0,1)}
    Rda   d1     d2   {Rd}
    Ld    drain  d2   {Ld*if(dgfs==99,0,1)}
    Rsb   source s1    10
    Rga   gate   g1    10
    Rdb   drain  d2    10

    G_TH  0    Tb  VALUE =  {Pb(abs(I(Ls)),V(Tj,Tcase),Rrbond*(1+(limit((V(Tb)+V(Tj))/2,-200,999)-25)*4m))}
    Cthb  Tb      0               3.71m
    Rthb  Tb      Tj              {Rtb}
    Rth1  Tj      t1              {3.18m+limit(Zthtype,0,1)*1.18m}
    Rth2  t1      t2              {37.94m+limit(Zthtype,0,1)*14.04m}
    Rth3  t2      t3              {152.2m+limit(Zthtype,0,1)*57.57m}
    Rth4  t3      t4              {154.57m+limit(Zthtype,0,1)*115.94m}
    Rth5  t4      Tcase           {264.77m+limit(Zthtype,0,1)*198.61m}
    Cth1  Tj      0               97.107u
    Cth2  t1      0               334.606u
    Cth3  t2      0               2.294m
    Cth4  t3      0               1.639m
    Cth5  t4      0               37.686m
    Cth6  Tcase   0               70m

    .ENDS

     I receive messages:

     WARNING (SFE-1805): "/OptiMOS-T2_60V.lib" 11: .FUNC is not recognised as a valid SPICE control card.

    ERROR (SFE-1024): "/OptiMOS-T2_60V.lib" 16: Instance `Lg': Unexpected value `0' - positional parameters are not allowed after explicitly named parameters.

     I have fixed problem with "if" by introducing ternary operator ( ? : ), but I do not know how to handle .FUNC and limit() constructions.

    Could you help?

Reply

  •  Hello, Andrew! I think, I have similar problem simulating the following model in spectre:

     .SUBCKT IPD100N06S4 drain gate source Tj Tcase PARAMS: dVth=0 dRdson=0 dgfs=0 dC=0 Zthtype=0 Ls=1.5n Ld=1n Lg=3n

    .PARAM Rs=659u      Rg=1.3       Rd=50u       Rm=180u
    .PARAM Inn=90       Unn=10       Rmax=3.5m    gmin=60
    .PARAM RRf=390m     Rrbond=12m   Rtb=5.5      g2=758m
    .PARAM act=9.3

    .FUNC   Pb(I,dT,Rb)  {Rb/(2*Rtb)*(I-limit(dT/(max(I,1n)*Rb)+RRf*I*g2,0,I))**2}

    X1  d1 g s Tj S4_60_o_var PARAMS: a={act} dVth={dVth} dR={dRdson} dgfs={dgfs} Inn={Inn} Unn={Unn}
                                            +Rmax={Rmax} gmin={gmin} Rs={Rs} Rp={Rd} dC={dC} Rm={Rm}
    Rg    g1     g    {Rg}   
    Lg    gate   g1   {Lg*if(dgfs==99,0,1)}
    Gs    s1     s    VALUE={V(s1,s)/(Rs*(1+(limit(V(Tj),-200,999)-25)*4m)-Rm)}
    Rsa   s1     s    1Meg
    Ls    source s1   {Ls*if(dgfs==99,0,1)}
    Rda   d1     d2   {Rd}
    Ld    drain  d2   {Ld*if(dgfs==99,0,1)}
    Rsb   source s1    10
    Rga   gate   g1    10
    Rdb   drain  d2    10

    G_TH  0    Tb  VALUE =  {Pb(abs(I(Ls)),V(Tj,Tcase),Rrbond*(1+(limit((V(Tb)+V(Tj))/2,-200,999)-25)*4m))}
    Cthb  Tb      0               3.71m
    Rthb  Tb      Tj              {Rtb}
    Rth1  Tj      t1              {3.18m+limit(Zthtype,0,1)*1.18m}
    Rth2  t1      t2              {37.94m+limit(Zthtype,0,1)*14.04m}
    Rth3  t2      t3              {152.2m+limit(Zthtype,0,1)*57.57m}
    Rth4  t3      t4              {154.57m+limit(Zthtype,0,1)*115.94m}
    Rth5  t4      Tcase           {264.77m+limit(Zthtype,0,1)*198.61m}
    Cth1  Tj      0               97.107u
    Cth2  t1      0               334.606u
    Cth3  t2      0               2.294m
    Cth4  t3      0               1.639m
    Cth5  t4      0               37.686m
    Cth6  Tcase   0               70m

    .ENDS

     I receive messages:

     WARNING (SFE-1805): "/OptiMOS-T2_60V.lib" 11: .FUNC is not recognised as a valid SPICE control card.

    ERROR (SFE-1024): "/OptiMOS-T2_60V.lib" 16: Instance `Lg': Unexpected value `0' - positional parameters are not allowed after explicitly named parameters.

     I have fixed problem with "if" by introducing ternary operator ( ? : ), but I do not know how to handle .FUNC and limit() constructions.

    Could you help?

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