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In this Knowledge Booster blog, we talk about Interactive Short Locator (ISL) and explore how to debug shorts in the LVS debug environment using ISL. We also introduce you to the videos and training materials that can help you understand and use this feature.

What are Shorts?

Shorts happen when two or more nets in the netlist are connected together incorrectly. In the LVS Debug Environment window, it is recommended to start debugging errors from the Shorts tab because shorts significantly affect results reported in other tabs like Extraction and Comparison.

Interactive Short Locator (ISL) is used by PVS LVS to debug shorts in the LVS or ERC Error Browsers. Check out the An Introduction to Interactive Short Locator (ISL) video.

How to Debug Shorts using ISL?

ISL employs the One-pass Short Isolation technique to display the paths that consist of shapes from the connected layers between the shorted labels.

It supports interactive navigation of the shapes along each shorts path found. ISL interactively places additional labels to reduce the path results. Interactive analysis of suspicious shape for short, and multithreading to reduce the runtime for shorts analysis, are other features of ISL.

Check out the How to Debug Shorts with Interactive Short Locator (ISL)? video.

For lab instructions and a downloadable design, enroll for the online training course below:

Physical Verification System v21.1 (Online)

This course can also be booked as Blended Training. Contact your local training department for further information.

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Information and FAQs

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Related Resources

Training Bytes (Videos)	PVS Introduction (Video) PVS DRC (Video) PVS LVS (Video) Interactive Short Locator (ISL) (Video) Pegasus Interactive Short Locator v20.2 (Channel Video)
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Online Course	Physical Verification System v21.1 (Online)

About Knowledge Booster Training Bytes

Knowledge Booster Training Bytes is an online journal that relays information about Cadence Training videos, online courses, and upcoming webinars that are available in the Learning section of the Cadence Learning and Support portal. This blog category brings you direct links to these videos, courses, and other related material, on a regular basis.

Sarita Sharma

On behalf of the Cadence Training team