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This is the last blog in the Virtuoso Device-level Routing blog series. This blog completes the story of how a trunk and a twig became a tree and describes the Tree Route flow and its features.
Before we move on to our last blog, let us quickly summarize what we have covered in the previous Virtuoso Device-Level Routing blogs:
Alex, a layout design engineer, is working on a complex, row-based, device-level design for advanced nodes. He is struggling to route the design using automatic routing and is keen to have a solution that would help him improve his productivity on such designs.
Alex happens to meet his friend John, who is also a layout designer, and discusses the problem with him. John recommends Alex about the fully automated out-of-the-box structured routing available in Virtuoso - Tree Route. During their conversation, John highlights the groundbreaking features of the new Tree Route flow.
The new Tree Route flow automatically identifies and routes mesh, ring (tap cell rings), and tree structures in the design. The Tree Route flow lets you quickly connect device pins in a structured topology.
In the below video, you can see how the Tree Route flow can be used to automatically route nets with symmetry constraints in a specified area of a design. Running the Highlight Trunks command after routing using the Tree Route flow displays the different levels of trunks in various colors.
The Tree Route flow sets your routing free and routes a forest in seconds. This helps the layout designers to increase layout productivity.
Product Manual Topics
Rapid Adoption Kits
Using the Tree Route Flow
Automatic Structured Routing Using Tree Router
Auto Merging Wires During Interactive Routing – Overview
Virtuoso Layout Pro: T5 Interactive Routing (XL)
Using Tree Routing
Allowing Loops During Interactive Routing – Overview
Adjusting Edited Vias Params – Overview
Showing Alignment Markers During Interactive Routing - Overview
Using Override Constraints in the Wire Assistant – Overview
For more information on Cadence circuit design products and services, visit www.cadence.com.
Virtuosity has been our most viewed and admired blog series for a long time that has brought to fore some lesser known, yet very useful software and documentation improvements, and also shed light on some exciting new offerings in Virtuoso. We are now expanding the scope of this series by broadcasting the voice of different bloggers and experts, who would continue to preserve the legacy of Virtuosity, and try to give new dimensions to it by covering topics across the length and breadth of Virtuoso, and a lot more… Click Subscribe to visit the Subscription box at the top of the page in which you can submit your email address to receive notifications about our latest Virtuosity posts.
Parul Agarwal and John Wilkosz (Team Virtuoso)