Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
I need to simulate FinFET based circuits
I have BSIM-CMG codes and models from http://www-device.eecs.berkeley.edu/bsim/?page=BSIMCMG_LR
this includes veriloga files.va and files.include and model card.nmos files
I tried several methods to add these in Cadence, but still something missing
so I am asking about the right way to add such files to enable circuit simualtion.
if any one managed to do this before, could help.
It should not be necessary to use the VerilogA models, since bsimcmg is built in to spectre (MMSIM11.1 contains the latest version of bsimcmg, 106.1 (as mentioned on the page you gave).
You can run the examples as provided directly in spectre (I commented out the .hdl lines, but even with the .hdl line it runs). Whether the results are as expected is another matter, but then these are slightly artificial examples.
For example: spectre inverter_transient.sp
If you're talking about ADE, you can add the model file (modelcard.nmos) directly in ADE in Setup->Model Libraries. You'd probably need to create a transistor component (based on nmos4 maybe) with the right parameters, since bsimcmg has different parameters than most MOS models (see "spectre -h bsimcmg" - it doesn't have w and l, but has w,d, nf, nfin etc).
Best is to get the models from the foundry process you're using.
In reply to Andrew Beckett:
Andrew Beckettsince bsimcmg has different parameters than most MOS models (see "spectre -h bsimcmg" - it doesn't have w and l, but has w,d, nf, nfin etc).
since bsimcmg has different parameters than most MOS models (see "spectre -h bsimcmg" - it doesn't have w and l, but has w,d, nf, nfin etc).
I believe you meant l, d, nf, nfin, etc? BSIM-CMG does not use 'w' to define device geometry.
In reply to tkhan:
I am trying to include the BSIMCMG106.1.0 model into cadence. I want to know if you got success in doing so. I need your help in this regard.
In reply to SHEKHARvnit:
So what is your problem? As I mentioned before, spectre supports bsimcmg:
UNIX> spectre -h bsimcmg**************Device bsimcmg**************bsimcmg model (For more information, please refer to bsimcmg model manual or contact email@example.com)The available versions are 105.01, 105.02, 105.03, 105.031, 105.04, 106.0 and 106.1.This device is supported within altergroups.Synopsis:Name ( d g s e ) ModelName <parameter=value> ...Model Synopsis:model ModelName bsimcmg <parameter=value> ......
Well, i just did some trials, that is what i did:
- I created a new cell view with verilogA type (since the availlable models are verilogA in the Berkeley site)
- This will generate for you the basic terminals of the device s,d,g,e , then u can creat a and save it.
- Then open a schematic cell view, and insert yr new FinFET symbol (u just created) in whatever topology.
- There is a parameter files for n-type and p-type u have to attache them otherwise when u run the simulation they would appear as undefined design varialbles that u have to put them manually.
- I performed a DC and Transient simulation however i had some problems doing AC analysis.
I am not sure about what i did right or not or missed something....!!
I dont think that my cadence version support BSIMCMG as abuilt in library
Also i think that Synopsys , HSPICE supports CMG libraries too.
In reply to Ahmed Taha:
I see very little point in using the VerilogA implementation of the model. bsimcmg is built-in to spectre in MMSIM72, MMSIM101, MMSIM111, and MMSIM121 (that's the last four major releases; MMSIM72 was released in 2009, so it's been there for a while).
So Cadence has supported this for some time.
I've not tried using the VerilogA model (for some time), but to be honest, you would be far better off using the optimized production versions. I can't see much point in sticking to a simulator release which is more than 4 years old if you don't have access to it right now? I suspect that you would need a similarly aged version of HSPICE to support this natively too, if you're using HSPICE.
Sir,How did u identify whether the FinFET symbol is n-type or p-type after the VerilogA file is imported . Bcoz the VerilogA file gives a black box only with four terminals s,d,g,e. Then how do i use this black box in an inverter circuit and simulate it using spectre. Kindly suggest me some idea for the same.
In reply to Pretty:
I dont know, it should work
Try to select yr symbol, right click and choose properties
Ahmed Taha- There is a parameter files for n-type and p-type u have to attache them otherwise when u run the simulation they would appear as undefined design varialbles that u have to put them manually.
I followed your instructions but I do not know how to attach the parameter files. Can you help me?
In reply to teosm:
me too :)
I tried to attach it but I did not manage, I inserted them manually from the file
But there should be a way.
Did you insert them manually in ADE? If you did so, I don't think there is any distinction possible between NMOS and PMOS. If you copied into verilogA files, which file did you copy them to? I tried but I get a lot of errors.