need 90nm model file ?

[manish12]

ptm nmos tnom

can anybody have 90nm model file ?
i am doing project on cmos mixer in that i want to optimz the area ,freq , power.
for that i need 90nm model file.
thanx

 

[dongqing]

Which foundry that you need?
UMC OR IBM?

 

[manish12]

it is nice to have both .
can you upload it ?
thanx

 

[raduga_in]

here is the one ..

 

[manish12]

thanx .
again i need bjt model file ( for any fab.)
do you have it ?

 

[raduga_in]

Hi Manish,

Just try it in Mosis' website ..

Regards
Raduga

 

[evilguy]

for circuit simulation i think you can try to use **broken link removed**. The accuracy is quite reliable to actual fab house process.

 

[manish12]

some parameters name shown unknow for 90nm model file in ADS .

 

[raduga_in]

Can you tell us, for which parameters it is treating them
as unknown.

Raduga

 

[evilguy]

some parameters name shown unknow for 90nm model file in ADS .

if you reffering to the 90nm PTM model, actually the parameter "xrcrg1" in the PTM is recognized as unknown cause there is some "unknown" character probably space before the "xrcrg1" parameter. so simply backspace it to delete the space character. then the simulator will recognize it.

please take note that the PTM is in SPICE format. you need to use SPICE simulator to run them. if you want to use it in ADS, you must first convert the model into ADS netlist which i believe possible to do using ADS software.

 

[manish12]

i am not getting what you say ,
i am just read the para name and edit the model para values accordinglly.
convertion ????????????????

 

[raduga_in]

Manish,

What evilguy is saying ... if I have understood correctly is that .. the file structure is different in
standard spice and ADC.. so you will need to
convert the model files in ADS model format
as ptm gives it in BSIM format ..

 

[evilguy]

thanks raduga_in for clarify things. in addition to what you've said, the PTM model uses BSIM4 model. However the syntax is in SPICE format. advanced design system (ADS) can also read BSIM4 model. so it will understand all the parameter in the PTM. however the way (syntax) that all the parameter in PTM should be write in ADS is different. example in SPICE format the BSIM parameter is written like this

.MODEL NMOS NMOS (                                LEVEL   = 49
+VERSION = 3.1            TNOM    = 27             TOX     = 4.1E-9
+XJ      = 1E-7           NCH     = 2.3549E17      VTH0    = 0.3605538
+K1      = 0.5777152      K2      = 2.526592E-3    K3      = 2.670152E-3
+K3B     = 0.5204602      W0      = 1E-7           NLX     = 1.849791E-7
+DVT0W   = 0              DVT1W   = 0              DVT2W   = 0
+DVT0    = 1.5818674      DVT1    = 0.4236362      DVT2    = 0.0343793)

whereas in ADS the BSIM is written like this

model nmos MOSFET Version=3.1 Tnom=27 Tox=4.2e-9 Xj=1e-7 Nch=2.3549e17 Vth0=0.3710619 K1=0.5940793 \
      K2=2.070131e-3 K3=1e-3 K3b=2.7158495 W0=1e-7 Nlx=2.005089e-7 Dvt0w=0 Dvt1w=0 Dvt2w=0 \
      Dvt0=1.4615376 Dvt1=0.3798134 Dvt2=0.0692378\

this is what i meant. so the conversion is simply to change from SPICE format to ads format. however there are many ways. I remember i did like this to simulate my circuit in ADS. If you can do it another way and ADS can simulate your circuit using the 90nm PTM model card, than your method also can be used.

when you said that

some parameters name shown unknow for 90nm model file in ADS .

what parameters that you referring to?

-evilguy-