Calibre
IC VerificationIndustry-standard IC physical verification and signoff platform, DRC, LVS, parasitic extraction, and pattern matching for advanced-node tapeout. Available in India from GSAS.
DRC
Design rule checking with certified foundry rule decks
LVS
Layout vs. schematic with device-level recognition
xRC
Parasitic extraction (RCX) for post-layout simulation
Pattern Matching
Automated layout pattern detection and classification
PERC
Electrical reliability checking (ERC/ESD/LUP)
Process Nodes
Certified rule decks down to 2nm (TSMC, Samsung, Intel, GF)
Overview
About Calibre

Calibre is the industry-standard IC physical verification and signoff platform from Siemens EDA, used by every major foundry and fabless semiconductor company worldwide. It provides the verification engines that ensure a chip layout is manufacturable and electrically correct before committing to silicon fabrication. Calibre’s certified rule decks from TSMC, Samsung, Intel, and GlobalFoundries are the definitive reference for tapeout signoff at advanced process nodes down to 2nm.
The platform encompasses the full spectrum of physical verification: design rule checking (DRC) validates geometric compliance with foundry manufacturing rules, layout vs. schematic (LVS) confirms that the physical layout matches the intended circuit netlist, and parasitic extraction (xRC) generates accurate RC netlists for post-layout timing and signal integrity simulation. Calibre Pattern Matching identifies and classifies layout constructs that impact yield or reliability, while PERC (Programmable Electrical Rule Checking) catches ESD, latch-up, and electrical reliability violations that geometric DRC cannot detect.
| Capability | Detail |
|---|---|
| Calibre nmDRC | Nanometer design rule checking with hierarchical processing |
| Calibre nmLVS | Device recognition, soft/hard connectivity checks |
| Calibre xRC | Parasitic extraction for analog, digital, and RF designs |
| Calibre Pattern Matching | Yield-critical pattern identification and classification |
| Calibre PERC | ESD, latch-up, electrical reliability rule checking |
| Calibre RealTime | In-design DRC/LVS within Cadence Virtuoso and Synopsys Custom Compiler |
| Calibre DESIGNrev | Layout viewing, debugging, and results navigation |
Calibre is essential for any IC design team targeting volume production at advanced foundry nodes, where hundreds of thousands of design rules must be satisfied for successful tapeout. Analog, digital, mixed-signal, RF, and memory designs all rely on Calibre for final signoff verification.
GSAS Micro Systems provides Calibre licensing, deployment, and technical support for semiconductor design teams across India, with assistance for foundry rule deck setup, verification flow integration, and custom rule development.
Blog
Siemens EDA Insights
India's EDA Moment: Why Design Tool Demand Is Growing, and the Engineering Careers It Creates
Electronic design automation is one of the few engineering markets where the global numbers and India's industrial policy are pointing the same direction at the same time. Here is what the published data actually says, which engineering roles the growth creates, and where GSAS Micro Systems fits as an authorized Siemens EDA engineering partner.
AI and Complexity Are Redrawing EDA: Siemens on the Trillion-Transistor Era
Siemens argues that chip complexity has outgrown siloed design and that the lines between chip, package and board can no longer be drawn. GSAS summarises the Industry Forward podcast episode and sets out what it changes for design teams in India: verify across the chip-to-board boundary before layout, not after the prototype.
Calibre Vision AI: Bringing Order to DRC Debug at Advanced Nodes
Siemens EDA's Calibre Vision AI turns full-chip DRC debug from an unmanaged flood of violations into a tracked, filtered, hand-off-able workflow. What Signal status tracking, global filters and shareable workspaces mean for Indian SoC teams.
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Common questions about Calibre
What is the difference between Calibre DRC and Calibre LVS?
What process nodes does Calibre support?
Is Calibre available in India?
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