I'm not familiar with the GDI technique. However, it looks to me that a
basic GDI cell is just a circuit with one NMOS and one PMOS transistor
where the gates of both the NMOS and PMOS are connected together to
create an input G terminal, the source and drain of the NMOS are
connected together to create an input terminal N, the source and drain
of the PMOS are connected together to create an input terminal P, and
the bodies of the NMOS and PMOS are connected together to create an
output D terminal.
On the cmosedu website, you should be able to find in the tutorials how
to layout a 4-terminal NMOS and PMOS transistor having a gate, source,
drain, and body [ http://cmosedu.com/videos/electric/electric_videos.htm ].
So yes, I think you can create a layout and circuit schematic in Electric.
However, there might be one limitation. I have read in articles like
[1] that not all the functions are possible with standard CMOS process
and that GDI circuits need the Twin-Well CMOS or the SOI (silicon on
insulator) process. The circuit components in Electric are expected to
be those for the standard CMOS process. So if you are just doing this
for a class, a simulation result showing that the circuit works or does
not work as expected might be good enough for you. On the other hand,
if you are doing this for practical application, it might not be
possible to get the simulation result that you would want for realistic
devices as that might require you to adjust parameters (and possibly
code) to account for any differences in the component models that might
exist between the different processes. Though, that is something you
would have to do more research into.
I hope that helps and good luck.
[1] Pooja Verma and Rachna Manchanda, "Review Of Various GDI Techniques
For Low Power Digital Circuits", International Journal of Emerging
Technology and Advanced Engineering, vol. 4, p. 387, 2014.
http://www.ijetae.com/files/Volume4Issue2/IJETAE_0214_64.pdf
On 2/10/2015 8:56 AM, nithya.malani wrote:
can we use GDI (gate diffusion input) technique in Electric software.
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