Timing sign-off corner

Timing sign-off cornerLet us say, each minima/maxima in cell characteristics as ‘PVT corner’ and net characteristics as ‘extraction corner’. Each combination of PVT extraction corners is referred to as a ‘timing corner’ as it represents a point where timing will be extreme. http://vlsiuniverse.blogspot.kr/2014/01/timing-corners-dimensions-in-timing.html