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.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
This course combines our Allegro PCB Editor Basic Techniques, followed by Allegro PCB Editor Intermediate Techniques.
Virtuoso Analog Design Environment Verifier 16.7
Learn learn to perform requirements-driven analog verification using the Virtuoso ADE Verifier tool.
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'm a university student currently learning to use Cadence Tools.I'm trying to write Extract Rules for Diva - just for the parasitc resistances and capacitances.So I thought that the measureResistance command will be enough...but it just takes out the resistances without connecting them and for the capacitances- I wanted to use the multiLevelParasitic command (before that I've defined the outLayer for the measureResistance) but there are no capacitances in the extracted view...
I'm sorry if the question is stupid but I'm learning this since 2 months and I don't have much time left to finish this project...
Thank you in advance
If you read the documentation on Diva (/doc/divaref/divaref.pdf if you can't find it in cdsdoc), this is quite clearly described in the documentation for measureResistance, particularly in the section "Cross Coupling and Fringe Capacitance" in the "Extracting Parasitic Resistance (PRE)" chapter.You simply specify an output layer for the measureResistance command, and then use these as the inputs to multiLevelParasitic instead of the original layers - that way multiLevelParasitic knows about the resistance information and how the layer has been split up to accommodate the resistors.Regards,Andrew.
Thank you very much for your answer...but that's exactly what i've done and it doesn't work...And also do you have any idea why the resistors are not connected? (I have defined the geomConnect command)Best regards, Kremi
I have now noticed that when I start the Extract it gives me the following messages:optimizing rules ...removing unused tasks ...multiLevelParasitic(...)I really don't know what to do next....Best regards,Kremi
Without seeing your rules (at least the portion of them that do the geomConnect, measureResistance and multiLevelParasitic), it's hard to know what is wrong.Regards,Andrew.
These are my rules: poly = geomOr( "Poly" ) nplus = geomOr( "Nplus" ) ocon = geomOr( "Ocon" ) galu = geomOr( "Galu" ) galures = measureResistance(galu "resistance" 1.0 "resistance" ) (save "galu_res") polyres = measureResistance(poly "resistance" 1.0 "resistance" ) (save "poly_res") geomConnect(via(ocon nplus galu poly)) cap = multiLevelParasitic( layers(polyres galures) cap(polyres galures 1.0 nill) ) Thank youKremi
I've solved the problem with the condensators...they appear but they are over each other and there are no connections between them or the resistors.Regards,Kremi