Ultra Fast SPICE Accurate Path Analysis
Are there paths where static timing analysis is too pessimistic?
Are there timing failures that static timing missed?
Path FX helps to close timing for critical paths.
The FX variance engine is 1 million times faster than Monte Carlo SPICE but still easily within 2% of the results for total path delay.
FX models effects not captured by traditional cell models
including Miller capacitance, side receivers, local voltages, temperature variation, noise propagation through gates, statistical metal, …
Path FX supports corner delays, global corners, and full statistical timing. Handling non-linear effects in complex waveforms and asymmetric distributions.
Signal FX reduces crosstalk pessimism
Full waveform propagation correctly captures SI impacts at every stage.
Matches SPICE to within 1%
- Sweeps aggressors against victim
- Can use aggressor list from STA
- Identifies worst case alignment
Measurements options
- RIP: Measure at receiver input like most STA tools
- ROP: Measure at receiver output for true SI impact
Eliminates timing surprises
Finds failing paths that traditional STA misses
Apply statistical SPEF to find delay shifts
Apply gate variance to find launch/capture skew
No complicated set up
Works directly with your STA and SI tools using a simple TCL script to extract and hand off path information
Reads standard input formats and generates timing reports or SDF
1 command to run
Results can be validated with SPICE with automatically generated netlists
Block level timing models
Path FX isn’t just for critical path timing. If you have critical blocks that determine system speed, Path FX can create block level timing models in standard Liberty .lib format. The models can easily be shared between design teams and used in traditional static timing analysis flows.
Please contact sales@clkda.com for more information about Path FX.
