Most design teams use the schematic-driven connectivity-aware environment of Virtuoso Layout XL. However, due to the reuse of legacy designs, third-party tools, and the flexibility of the Virtuoso platform, a design can lose binding and connectivity.
Despite the layout being LVS clean, this loss of Virtuoso Layout XL compliance can result in incomplete or incorrect information in the design that can impact the layout process within the Virtuoso platform.
This blog highlights the functionality developed and enhanced in the IC23.1 release to facilitate a more user-friendly layout flow within Virtuoso. Each application requires a different level of compliance (XL compliance, Innovus Implementation compliance, and so on) and has a dedicated interface to check this compliance. ARC provides a single-user interface for all applications. It is available by default in the XL, EXL, and MXL tiers.
Each application has its own set of requirements regarding schematic correspondence and connectivity. All applications in the XL environment rely on the correspondence between the schematic and the layout, so these checks are shared. The XL-specific checks like Check Against Source (CAS), Update Binding, and Update Components and Nets (UCN) are consolidated under the “Schematic v Layout” application. Other applications like “Design Planner”, “Electrical Aware Design”, “Voltage-Dependent Rule”, and very recently, “Innovus” are available.
- The interface is application-driven, so the designers know what to run.
- The checks generate markers, which are available in the Annotation Browser.
- Custom checks and updates can be included (using SKILL).
- There are options to run on the entire library, exclude, include, define leaf cells, and filter messages.
- There are multiple reporting options: log file or HTML file, including a report per application and a summary.
- The HTML report is generated to see the detailed status of each cell view.
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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.
Sandhya P S
On behalf of the Cadence Training team
