Cadence® system design and verification solutions, integrated under our Verification 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.
More Support Log In
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 technology. 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'm using SOCE for P&R and I keep getting this spacing error with the pad fillers:
Pin of Cell IN0_5 & Blockage of Cell pfill_W_44
I cannot seem to resolve it. What could be the problem?
In reply to vishnu:
Thanks for responding!
Attached are some of the pics detailing the errors.
There are 2 main DRCs, one between the fillers etc. and the other is the special route to the power I/O pads.
In reply to Mooty:
The first picture looks like nanoRoute is trying to route some nets that are really connected by abutment of the IO cells. You should place a -skip_routing attribute on these nets:
setAttribute -net net1 -skip_routing true
The second picture looks like a violation between the route to the IO pin and the blockages around the IO pin. These may or may not be real violations - you'll have to run your signoff DRC to be sure.
I'm not sure about the other two.
In reply to Kari:
Thanks a lot for your help.
The first case, however, is actually the connection between the power pads and the power ring. This connection is necessary right?
I have another problem now.
Apparently, there are some DRCs between the power stripe and the cells beside it. The error seems related to the clock as all of the errors have the clock present.
For the first issue, if you mean that the IO ring is connected by abutment but you are seeing violations, it could be blockages causing verify geometry to think there is an error where there really isn't. You can try turning on/off some of the ver geom settings and see if you get different results. The real test is signoff DRC. Does it show any problems in your IO ring?
For the second issue, it's hard to tell from this picture (not everything is turned on), but it looks like you have a wide metal (the power) too close to regular routing. Maybe your clock routes are double-width? I'm not sure. Turn on signal routing and see if you can tell what the error marker is flagging. The text description should also shed some light.
with regards to the second issue,
The error message is of this form:
SPACING: Regular Via of Net Final/CLK__L7_N231 & Special Wire of Net vdd! ( M2 )Bounds : ( 2746.350, 711.800 ) ( 2747.100, 712.600 )Actual: 0.75 Min: 0.8
I still can't figure out how to solve this problem. Is this a placement problem?
You have a spacing violation between the m2 in the via on the C pin and the m2 bus on the left. (I think your nets are not displayed because you are in floorplan view instead of physical view.) Once you get the nets displayed, the error should be clear.