Run strict constraints verification using industry-standard tools
(
Synopsys TCM
,
SpyGlass Constraints
, or
Cadence CCD
) to eliminate unconstrained paths, incorrect clock-gating
checks, and conflicting case analysis settings between
functional and DFT model
Hands-on experience reading, writing, and parsing
Unified Power Format (UPF)
constraints to validate low-power design architectures (e.g.,
power-gating, isolation cells, retention registers, and
level-shifter placement
Familiarity with Logic Equivalency Checking using industry tools like
Cadence Conformal LEC or Synopsys Formality to verify that
optimization/ECO steps maintain functional equivalence
Deep understanding of advanced node variation models (POCV/LVF),
temperature inversion, crosstalk/noise analysis, and hierarchical
top-level clock distribution networks
Solid comprehension of DFT architecture, test clock structures,
multiplexer-heavy clock networks, and asynchronously driven test
logic
Expert proficiency inTcl
(highly critical for runtime timing script customization) and
Python/Perl
for automated data mining and constraint auditing