ABSTRACT

Some studies have shown that the testing phase can constitute a serious problem in the overall production time. For typical circuits, testing can take from the one-third to the half of the total time to market (TTM) [1]. In [2], it has been shown that a design-for-testability (DFT) technique such as full scan can reduce by more than a half the total engineering costs. Indeed, scan helps in detecting a fault quickly and in an efficient manner.