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Calibre Interfaces

Calibre integrates with all major design tools. Calibre® is the only sign-off verification toolset that is integrated with the full range of design tools used throughout the design flow. Calibre provides robust and extensible interfaces to custom design, place and route (PNR), and a wide range of specialty design tools. These interfaces bring the power of Calibre’s sign-off engines to the designer throughout the design flow, enabling early detection and correction of manufacturing issues.

Interface Types

Standard Invocation & Result Viewing Interfaces

Calibre’s standard interfaces enable users to run verification on the layout and schematics within a design tool, and highlight the results back into the design tool. Calibre Interactive™ interfaces with the design tool to invoke batch Calibre, and once the interface is established, any appropriate Calibre flow— DRC, LVS, PERC, PEX, or DFM—can be executed from the design tool. Calibre RVE™ is used to navigate the results and highlight them back into the design tool. If the design tool supports schematics, Calibre RVE can also highlight in the schematics.

Database Interfaces

Calibre can read and write from GDSII, OASIS®, OpenAccess, LEF/DEF, and the Synopsys Milkyway databases. Reading directly from the database eliminates the time required to open the database in the design tool, and jobs can be launched directly to the compute grid. Once batch processing is complete, Calibre can back-annotate results to the original database. While customers have developed many different applications of this capability, the most common is back-annotation of results from Calibre SmartFill or other Calibre YieldEnhancer modifications to the design database.

In-Tool Interfaces

The tightest integration possible between Calibre and a design tool is achieved by bringing the Calibre sign-off engines into the design creation process, enabling the design tool to create sign-off-clean layout with the absolute shortest time to results. Calibre RealTime provides this level of integration with custom layout tools, while Calibre InRoute™ provides this level of integration with Mentor’s Olympus-SoC™ place and route tool.

Enabling Interfaces

Some partner tools need a map between the layout and schematic netlists, or for extraction of the parasitic netlist from the physical layout. Because Calibre LVS is commonly chosen as the reference tool for LVS sign-off, customers usually have Calibre LVS and PEX decks set up to provide this mapping information already. Calibre interfaces allow customers to plug their sign-off LVS and PEX decks into the partner flow to provide a seamless integration between schematic and layout.

Features and Benefits

  • Run sign-off verification at every stage of the design flow to minimize overall design time
  • Reduce debugging cycle time with quick, intuitive debugging of cell, block, and full-chip designs
  • Re-use Calibre sign-off LVS and PEX decks with 3rd-party design tools

  • Read GDSII, OASIS, LEF/DEF, Milkyway, and OpenAccess for maximum flexibility
  • Write to common database formats to ensure DFM modifications pass timing closure
  • Calibre in-tool integration provides unprecedented productivity by enabling correct-by-construction design

Calibre How-To Series

The Calibre How-To video series provides quick and easy solutions to common problems and questions.

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