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 am running spectre for a circuit. The schottky requires model name. I get the following data from the schottky manufacturer and modified for spectre
model s_diode diode+is=0.000182183 rs=0.0312608 n=1.40283 eg=0.576586+xti=0.000499955 bv=1000 ibv=0.0001 cjo=4.92728e-10+vj=0.573693 m=0.464284 fc=0.5 tt=1e-09+kf=0 af=1
Is my langange correct? because i have a warning that says Junction current exceeds "imelt". The results computed by Virtusoso Spectre are now incorrect because the junction current model has been linearised.The Junction current exceeds "imax".
please teach me. thank you alot for your kind teaching.
The forward or reverse current must be exceeding 1A for this diode. You can increase this limit by adding a "imax" parameter to the model:
model s_diode diode+is=0.000182183 rs=0.0312608 n=1.40283 eg=0.576586+xti=0.000499955 bv=1000 ibv=0.0001 cjo=4.92728e-10+vj=0.573693 m=0.464284 fc=0.5 tt=1e-09+kf=0 af=1 imax=100
The default current density limit of 1A is considered reasonible for the diode devices typically found on an IC. Of course discrete and diodes designed for high power applications may carry higher currents.