Clock Skew时钟偏移
Clock skew is the variation in arrival time of a clock edge at different sequential elements on a chip, caused by imbalances in clock distribution paths, buffer delays, and load conditions. It appears in timing closure reports, static timing analysis scripts, and physical design documentation where setup and hold margins are verified, because excessive skew can reduce the usable clock period.
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Where this term appears
Clock skew is common in EDA tool documentation, timing violation reports, and physical design methodology guides. It appears in sign-off checklists and clock-tree synthesis reports where setup and hold analysis is described. Translators need to preserve the distinction between skew and jitter, because one is spatial across paths and the other is temporal at a node.
Translation checks
A common error is translating clock skew as 'clock drift' or simply 'clock offset' without distinguishing it from jitter. Skew is a spatial difference across paths, while jitter is temporal uncertainty at a given node. Mixing these terms in static timing analysis documentation can mislead engineers about whether to fix clock tree design or signal integrity.
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