Cadence Sigrity 2026: SI/PI Analysis with Sigrity X & 10x Performance

Cadence Sigrity 2026 is Cadence's signal integrity (SI), power integrity (PI), and multiphysics simulation platform for PCB and IC package design. Its core breakthrough is the Sigrity X next-generation architecture, delivering 10x performance improvement and 10x design capacity expansion over previous generations.

Key New Features in 2026

Sigrity X: New Simulation Engine & AI-Driven Optimization

Sigrity X features a new simulation engine built on the massively distributed architecture of the Clarity 3D Solver, capable of running synchronously with the Clarity 3D field solver. Key capabilities include:

• 10x Performance: Even large, complex boards complete analysis rapidly; package signoff workflows shrink from "a day or more" to "just a few hours."

• AI-Driven Optimization: Uses Cadence Optimality intelligent technology, leveraging machine learning to precisely identify optimal design configurations while significantly reducing simulation samples. MediaTek achieved a 75% design performance improvement after integrating Optimality.

• In-Design Analysis: Embeds simulation directly into the PCB design environment, enabling all engineers (not just experts) to perform SI/PI and thermal analysis concurrently during design, reducing design cycles by up to 50%.

Chip IO Interconnect Model Extraction (XcitePI)

Sigrity introduces XcitePI IO Interconnect Model Extraction, supporting generation of accurate SPICE netlists from chip layouts in GDSII or LEF/DEF formats for system-level high-speed channel simulation. The tool rapidly evaluates IO power/ground robustness and signal performance, identifying potential design flaws.

Clarity 3D Layout Enhancements (2026)

• Rigid-Flex Stackup Management: Supports single or multi-stackup designs with automatic Primary stackup label creation.

• Port Extrusion Distance: New capability for wave ports to extend geometry and boundary conditions, improving S-parameter calculation accuracy.

• Tabbed Routing Template: New single-ended tabbed routing template for optimizing pin-field impedance and reducing crosstalk.

• Frequency-Domain Animation & Post-Processing: Supports real and imaginary frequency animation of field quantities, plus near-field/far-field analysis switching between linear and logarithmic scales.