The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Simulators >> Circuit Simulators >> spice3f5 bsim4.4.0 model help
https://designers-guide.org/forum/YaBB.pl?num=1117840178

Message started by m_saibhushan on Jun 3^rd, 2005, 4:09pm

Title: spice3f5 bsim4.4.0 model help
Post by m_saibhushan on Jun 3^rd, 2005, 4:09pm

hi all,

I have installed spice3f5 on my linux machine and tried to include bsim4.4.0 model into the installation. The build and installation process went smoothly but I am not sure if the bsim4.4.0 model is actually incorporated into my installation. If anybody is familier with spice installation, please tell me what I can do to make sure of it.
For the installation, i modified the conf/defaults file to include the bsim directory name (bsim4) and placed the bsim4.4.0 directory in the ~/src/lib/dev directory with all the other devices. I renamed the directory to bsim4 to match with the conf/defaults file.
I have tried executing simple spice netlists and they are working, but transistor models are generating errors saying the parameter is undefined.
thanks,

Title: Re: spice3f5 bsim4.4.0 model help
Post by Geoffrey_Coram on Jun 6^th, 2005, 6:24am

Look in the directory src/lib/inp at the files "inp2m.c" and "inpdomod.c"
This is where spice maps "nmos level=4" to bsim1, etc.

You need to pick a level for bsim4.

Title: Re: spice3f5 bsim4.4.0 model help
Post by Geoffrey_Coram on Jun 30^th, 2005, 5:27am

One follow-up: the code in "inpfindl.c" only looks for levels 0-9. If you have a two-digit level (14 is often chosen for bsim4), then you need to make the appropriate modifications here.