Meet Reliability Challenges for Mission-Critical Applications

Mission-critical circuits in applications such as automotive, medical, industrial, and aerospace must perform longer and more reliably across different conditions. The Cadence Legato Reliability Solution integrates into the best-in-class Cadence Virtuoso and Spectre technologies, enabling transistor-level analog reliability verification for product lifespan, temperature and thermal propagation, and defect test coverage.

The Legato Reliability Solution includes aging simulation to predict device degradation, electrothermal simulation powered by Cadence Celsius Thermal Solver to measure the impact of heat propagation, and analog fault simulation to optimize manufacturing test coverage and meet functional safety requirements such as ISO 26262.

cubes image

Minimize Field Failures and Achieve Certification Faster

Achieve Reliability Goals Efficiently

Leverage Spectre Simulation Platform’s performance scalability to deliver fast turnaround times

Reduce Product Development and Verification Costs

Minimize late-stage design iterations, engineering delays, product iterations, and field failures

Faster Functional Safety Certification

Part of the ISO 26262-certified Cadence AMS Design and Verification Tool Chain for safety-related product development

Easy Adoption

Built on Virtuoso Studio and Spectre Simulation Platform for ease of use and to simplify technology adoption

Enabling Comprehensive Reliability Verification

Advanced Aging Simulation

Devices in mission-critical applications need to maintain their functionality and performance over their expected operating life, which could be 15 years or more. The Legato Reliability Solution’s advanced aging simulation supports foundry device degradation models and provides industry-leading device degradation modeling capability, enabling accurate prediction of circuit functionality and performance changes over operating lifetime.

Benefits
  • Full flexibility supporting multiple aging model interfaces and foundry PDKs
  • High-accuracy aging simulation for predicting design performance under realistic conditions using mission profiles and bias runaway capabilities
  • Reduce model development time through AGEMOS models with built-in mature and advanced-node aging effects

Electrothermal Simulation

Thermally sensitive applications such as automotive and power management designs need detailed analysis of heat impact and propagation. Self-heating simulations do not consider heat propagation, where a high-power density device can increase the ambient temperature of neighboring circuits and impact circuit performance. The Legato Reliability Solution’s electrothermal simulation leverages the Celsius Thermal Solver for thermal extraction and dynamically runs a transistor-level simulation to ensure designs meet target metrics while including the impact of temperature gradients on device behavior.

Benefits
  • Transistor-level solution captures self-heating and heat transfer effects on device electrical characteristics
  • Advanced visualization in Virtuoso Studio displays heat maps showing hot spots and isotherms
  • Highly accurate thermal extraction with Celsius Thermal Solver for transistor-level electrothermal simulation

Analog Fault Simulation

Detection of manufacturing defects is critical to prevent defective parts from entering the supply chain. Also, for automotive and other safety-critical applications, it is a critical requirement to achieve high diagnostic coverage. Transistor-level analog fault simulation in the Legato Reliability Solution provides a systematic approach to defect simulation and test/diagnostic coverage, reducing the threat of test escapes, ensuring compliance with functional safety standards, and optimizing post-manufacturing test time and cost.

Benefits
  • Transistor-level solution that enables simulation of manufacturing test coverage and functional safety metrics for custom/analog designs
  • Comprehensive reporting to detect design issues with detailed reporting of test coverage and safety diagnostic coverage
  • Extensive capabilities for tailoring the reported metrics and achieving faster turnaround time for various applications

Browse Recommended Resources

Need Help?

Training

The Training Learning Maps help you get a comprehensive visual overview of learning opportunities.
Training News - Subscribe

Browse training

Online Support

The Cadence Online Support (COS) system fields our entire library of accessible materials for self-study and step-by-step instruction.

Request Support

Technical Forums

Find community on the technical forums to discuss and elaborate on your design ideas.


Find Answers in cadence technical forums