Timing Closure

Making every path meet its deadline.

Timing closure is the iterative process of getting a design to meet all its timing constraints: every path analyzed, every clock's period honored, worst negative slack zero or better. The inputs are your constraints (see XDC / SDC); the levers are pipelining, logic restructuring, floorplanning, and sometimes just a faster speed grade.

The golden rule: constraints must describe reality first — a missing CDC exception or an unconstrained clock makes the report fiction. Convert between frequency and period with the timing converter.