Finfet bf981 dual gate transistor

[Arun Maya]

I Am Arun I doing project on low noise amplifier using FINFET that is dual gate transistor. but i need to do it in the netlist using HSpice or any Spice or any Tools even EDA board is possible also i can , so any one please help me guide how a Netlist shuld be created for finfet of any basic circuit.
:sad:
And is that finfet can be used in any without library files if needed means pls help me
Thank You

 

[BigBoss]

Since the model of this transistor is unknown, the netlist can not be created.

 

[davenn]

The BF981 is a Dual gate MOSFET

Have you tried creating the netlist for such ?

Dave

 

[Arun Maya]

no not yet but i should know weather it is possible to do in Hspice or any software i donno which software would be appt for Finfet.
please help me to knw which software can i use to knw the transistor so that i can connect directly.

Thanking u
ArunMaya

 

[Arun Maya]

ok Netlist cannot be created means Were and in which software can i find this transistor for exaple we will find mosfet in LT spice like that were i can find it or else ant other solution is their to use finfet in Hspice.

Thanking You
ArunMaya

 

[FvM]

A dual-gate MOSFET can be modelled in SPICE by two series connected single-gate MOSFETs. All you have to do is to match the parameters to your specific part.

 

[Arun Maya]

ok can i do this in LT spice by taking 2 transistor and making one transistor of source and drain by grounding or can u explain in details how to do a modell a SPICE by two series connected single-gate MOSFETs.

 

[Borber]

BF981 is obsolete (1981 year). You can use BF998 instead and it's spice model.

 

[pferenc]

Hi,

Is it what you need? I find some SPICE model of BF981.
(**broken link removed**)

 

[BigBoss]

Hi,

Is it what you need? I find some SPICE model of BF981.
(**broken link removed**)

There are some errors in that model parameters file.
CGB0=14.5N !! It's not possible..

 

[Arun Maya]

sir as you said that their is a wrong in CGB0=14.5N that means what i have to change to get correct output and all are telling we can use in spice model which spice model i can use LT spice or Hspice or pls name the spice model.

 

[BigBoss]

sir as you said that their is a wrong in CGB0=14.5N that means what i have to change to get correct output and all are telling we can use in spice model which spice model i can use LT spice or Hspice or pls name the spice model.

Do you have to use this transistor ?? It's too old and it hadn't never a SPICE model at all at that time.

 

[Arun Maya]

then were can i use this transistor
in frank i want to tell that i am doing project in finfet dual gate transistor i want to know in which software i can do my project and pls provide me a correct guide in which software like Hspice or Lt spice or any spice i possible or i have to do analog connection only. if any possible way is their means pls provide me coding and connection photo copy and all details to my mail id arunmayavan007@gamil.com

 

[FvM]

There are some errors in that model parameters file.
CGB0=14.5N !! It's not possible..

I agree that the parameter value looks suspicious. Reviewing a SPICE reference however clarifies the point, the Cxx0 parameters have the unit capacitance per m, it's multiplied with the channel width when applied to the simulation.

I don't know what's the design under simulation, but SMD variants of BF981 are still in production.

 

[BigBoss]

then were can i use this transistor
in frank i want to tell that i am doing project in finfet dual gate transistor i want to know in which software i can do my project and pls provide me a correct guide in which software like Hspice or Lt spice or any spice i possible or i have to do analog connection only. if any possible way is their means pls provide me coding and connection photo copy and all details to my mail id arunmayavan007@gamil.com

There are tons of "Dual Gate RFMOS" transistors in the market.For instance..
https://www.nxp.com/products/rf/transistors/#products
Select a proper one and find either SPICE model and apply it in your simulator or download Design Kit for ADS,AWR or Nexxim and do your design accurately..
Why you dig a big hole with a small needle ??? Engineering is a bit to find practical solutions...