Criticism of SSTA
A number of criticisms have been leveled at SSTA:
- It's too complex, especially with realistic (non-gaussian) distributions.
- It's hard to couple to an optimization flow or algorithm.
- It's hard to get the data the algorithm needs. Even if you can get this data, it is likely to be time-varying and hence unreliable.
- If used seriously by the customers of a fab, it restricts the changes the fab might make, if they change that statistical properties of the process.
- The benefit is relatively small, compared to an enhanced deterministic STA that also takes into account sensitivities and correlation.
Read more about this topic: Statistical Static Timing Analysis
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“The critic lives at second hand. He writes about. The poem, the novel, or the play must be given to him; criticism exists by the grace of other men’s genius. By virtue of style, criticism can itself become literature. But usually this occurs only when the writer is acting as critic of his own work or as outrider to his own poetics, when the criticism of Coleridge is work in progress or that of T.S. Eliot propaganda.”
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