Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
System Development 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.
Get email delivery of the Cadence blog featured here
I have found that the combination of Virtuoso's placer and router is very powerful for implementing smaller digital standard cell blocks. The placer can be used to create rows and then place the standard cells within the rows along with filler cells, much like a Big-Digital P&R placement tool. After placement, the router can be used to route the digital block. I have developed a demo that shows how Cadence's placement and routing technology can be used to quickly place and route a small digital block that has about 200 standard cells within just a few minutes. I have been showing this flow to several customers in Asia and North America and the feedback has been very positive.
The setup required for such a flow is straight forward. Assuming you already have a complete technology file with all required spacing rules for the technology node you are working on, there are only a few other things to make sure are setup:
Component Types (Std Cell component type must be defined for your standard cells and filler cells)
VirtuosoDefaultSetup constraint group must have the proper valid router layers and vias defined for routing
After that, you can use the Placement Planning utility to create the power rails and rows that will be used to place your standard cells in. After the rows are created, you can used the Auto Placement GUI to run the custom digital placer. For my block with 5 rows and 200 standard cells, the placer ran in just under a minute. It is quite impressive to see how fast the placer runs. After placement, you can use the router to route the design. For this design, the router ran in about 5 minutes. I had a completely placed androuted digital block in under 10 minutes.
If you need to quickly place and route a small digital block, it would be worthwhile to look at Virtuoso's Custom Placer and Space-Based Router in IC6.1.3 to place and route the block.
Hi John, I'd like to download the training material for this workshop. Could you please send me the workshop material? Thanks
Yes, you can do a similar flow in IC5141 using VCP and VCAR, although the IC5141 flow is less integrated than in IC613. That is, in the IC5141 flow, you will need to launch the router (VCAR) as a seperate tool outside of virtuoso (different GUI). Where in the IC613 flow described above, you can perform the routing from the Virtuoso Layout GUI. Please also note that for 65nm (and smaller), you will need to use VSR as VCAR does not support 65nm (and smaller) rules. Hence, if you try to route a 65nm, or 45nm design with VCAR, you will be left with many DRC errors, where VSR does support 65nm (and smaller) rules.
I have a workshop available that goes over this flow. If your are interested, please send me an email: email@example.com.
Is such feature only available in IC6.1.3 platform ? I have used the VCAR/CCAR in IC5141 platform to do the similar things, but i don't know what are the improvements this tool provides in IC6.1.3
Would you also share your demo to me after you complete the demo script ?
Thanks. Mike Yi
Yes, that is true. The place and route flow within does not take timing into account.
So this flow would be great for customers that need to implement small digital blocks without timing. I need to write up the demo script before I distribute the demo. I will do that shortly and let you know when it is ready. Thanks for your interest.
The demo and flow you have suggested would be very helpful for customers who do not care about timing and has a small digital block to place and route...Thanks for sharing. Do you have the demo available so we can download it and get a better understanding of the tool. Best Regards,Mariam