Can we use Tanner to design a IC Chip from frontend to backend?

[anhtuan]

Can we use Tanner software to design IC at CMOS level? In S-edit, NMOS or PMOS just have a few parameters like :W,L,PS,AS.. But in practical ,NMOS and PMOS have lot of parameters . So ,why we can design IC accurately?
Thanks a lots!

 

[enggan]

tanner eda tanner ic software

hi
actually only few parameters are of importance in calculations rest all make a very little difference that is why you can design accuratly with few important parameters

 

[anhtuan]

tanner tool

Hi!
When we simulate by Winspice,Hspice or Cadence NMOS and PMOS always be simulated follow a MODEL like (Level BSIM, MOSIS...). But in S-edit we can assign that Model into the circuit!

 

[evilguy]

tanner - l edit

i think you misuderstood. S-Edit is use to draw schematic of the circuit. not simulate it. Tanner tools come in 4 software. S-EDIT, L-EDIT, W-EDIT, and LVS.

To simulate circuit. you need to extract the schematic drawn using S-EDIT into spice netlist. using this netlist, than you can simulate it using T-SPICE. however you need the SPICE model parameter like BSIM model. This T-SPICE is similar to HSPICE because both is SPICE simulation software. if you are familiar with HSPICE i thick you will find T-SPICE is similar and will not face trouble using it.

 

[andy2000a]

draw schematic using s-edit using tanner

Sedit -> schematic tool like Cadence composer
or workview viewdraw or ECS (AMS/ADP)

Tspice -> like hspice/tspice

for ASIC design .. we use really aisc design tool
not Tanner .. ledit can layout fully chip . but fab only support dracula or calibre LVS/DRC command file , how to use Ledit is really ASIC design ??

Tanner be use for student study ..

 

[anhtuan]

converting ledit to winspice

So, can we use Tanner to design a IC Chip from frontend to backend? Our Center intend to design an LDO!

 

[andy2000a]

tanner commands layout

for small case design , like LDO .. you only need care DRC , maybe don't need
use LVS & LPE extract , Tspice can sim IC .

but in fablesss , we use hspice .. because we trust it .

 

[evilguy]

tannersoftware

So, can we use Tanner to design a IC Chip from frontend to backend? Our Center intend to design an LDO!

you can use tanner to design IC. however when when you want to draw the layout you need fab design kit that support tanner software (L-EDIT) if fab house dont support that you have to manually setting all the layer/DRC in L-EDIT according to fab house process. then you need to write you own extract defination file in order to extract the layout into SPICE netlist. you can do all this thing manually but it is time consuming.

 

[andy2000a]

winspice nmos program

have any tool can convert dracula/calibre DRC LVS LPE command to Tanner Ledit ??

 

[tran]

defination of tspice

you can go to this web
**broken link removed**
there is IC design flow using Tanner Tools. You can see which tool you need for IC design.