The Composite Current Source (CCS) modeling technology is the first in the industry to deliver a complete open-source current-based modeling solution for timing, noise and power. Along with the available parsers, characterization/validation tools, and guidelines, this open-source Liberty™ modeling format enables efficient characterization for cell library creators. For IC designers, the CCS modeling technology enables comprehensive nanometer design analysis and optimization for the first time. Designers can reduce design margins and speed design closure by eliminating iterations.

Modeling Challenges

• At process geometries of 90-nm and below, many new effects and design styles need to be supported during design implementation and sign-off. Some of these modeling challenges include:
• High impedance interconnect
• Miller effect
• Dynamic IR-drop
• Multi-voltage
• Dynamic Voltage and Frequency Scaling (DVFS)
• Driver weakening
• Temperature inversion
• Increasing variations
• Another major modeling challenge is that some of the new effects are inter-dependent between timing, noise and power.
• Closed, proprietary disparate models for noise and power are difficult to verify and diminish productivity since no single environment can have full access to timing, noise and power.

The CCS Modeling Technology Solution
The CCS modeling technology consists of a single Open-Source Liberty library that covers current-based modeling for timing, noise and power along with all the necessary tools and guidelines for accurate library generation and validation. This complete modeling solution will simplify and accelerate the adoption of this new technology.

Complete Current-based modeling solution

Key Features and Benefits:

• Industry’s first open-source, comprehensive current-based that combines timing, noise and power
• Enables accurate modeling of new nanometer effects such as:
• High impedance interconnect
• Miller effect
• Driver weakening
• Noise propagation
• Dynamic IR-Drop
• Multi-Voltage
• Temperature Inversion
• Enables comprehensive modeling of effects that are inter-dependent between timing, noise and power
• Enables voltage and temperature scaling, simplifying multi-voltage and DVFS design flows
• Allows designers to reduce design margin, deliver designs with higher performance, lower area and power consumption
• Fast, efficient library characterization:
  • Concurrent characterization for timing and power
  • 100X faster for noise

• Industry wide support

For more information about this product, please contact your local Synopsys representative or call 1-800-388-9125.

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