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## Tags: tool:fettoy

### Questions & Answers (1-18 of 18)

1. average velocity vs gate voltage for single and double gate mosfets

Closed | Responses: 1

The injection velocity vs gate voltage curve for the single and double gate mosfets dips to 0 at gate voltages greater than 0.2 volts. But it shows the usual curve for the nanotubes and...

2. can i use fettoy to calculate I-V characteristics of a simple P-N junction before and after illumination to solar energy in 1D ?

Closed | Responses: 1

can i use fettoy to calculate I-V characteristics of a simple P-N junction before and after illumination to solar energy in 1D ?

3. code posts error message for negative threshold voltages

Open | Responses: 2

If I choose a carbon nanotube and a negative threshold voltage the code stops with an error message “mrdivide” or something like this.

4. equation of Id

Closed | Responses: 1

sir, from where can i find equation of Id ,sir in your learning module you have mentioned various equations for double gate but can we apply the same equation to GAA?thanks

5. Expansion of the term FETToy

Closed | Responses: 1

6. FETToy :Can I use this tool to design circuits

Closed | Responses: 1

Hi, If download the tool, can use it for designing and simulating the circuits for eg;counter,SRAM etc using CNTFET. If not, is it easy to edit and make changes for simulating...

7. How do I use the floating source potential?

Open | Responses: 1

Hi! I was trying to use the MOSFET version of FETTOY and would like to use the floating source potential. I noticed that I need to define the Equilibrium Source Carrier Concentration NSD2D. How...

8. I would like to know about the gate length of nano scale mosfet

Closed | Responses: 0

9. I would like to know the nantube length used in fettoy simulation. Is it 10nm? Does the L affect the drain current?

Open | Responses: 2

10. include more subbands in the simulation

Closed | Responses: 0

FETToy normally considers the contribution of the lowest subband. how can I include more subbands when doing the simulation? It would be my honor to get replied.

11. May I use Fettoy for modeling defected GNRFET?

Open | Responses: 1

12. Negative voltages for Fettoy

Open | Responses: 2

Hi,

i am simulating for negative gate voltages, but i find that i have not been able to do so and i get back an error “mrdivide”. does that mean the tool cant simulate for...

13. netlist

Closed | Responses: 0

how can i get netlist after simulating silicon nanowire fet device?thank you

14. substrate of this model

Closed | Responses: 1

may I know what is the substrate for this model.if I change the substrate of this model,what parameter should I change? example substrate such as http://nanohub.org/answers/question/989

15. Threshold voltage

Closed | Responses: 0

Thanks for such a useful tool.

How does the entered threshold voltage used in CNTFET calculations, is it just subtracted from gate voltage to obtain effective gate voltage? I cannot see...

Closed | Responses: 0

17. What is the Gate Length of the four devices being discussed in this tool??

Closed | Responses: 0

18. Why is the floating source present in the MOSFET but not in the CNFET?

Closed | Responses: 0

Hi!

I was looking into FETTOY codes for CNFET and MOSFET. I noticed that the floating source is implemented in the MOSFET to ensure charge neutrality but the CNFET code does not have the...