Path Sensitization

For different delay models, the concept of sensitization can be very different.Thaditional concepts of sensitization cannot precisely describe circult behavior when the input vectors change very fast. Using Boolean process approach, this paper presents a new definition of sensitization for arbitrary input waveforms.By this new concept it is found that if the inputs of a combinational circult can change at any time, and each gate's delay varies witliln an interval (bounded gate delay model), then every path, which is not necessarily a single topological path, is sensitizable. fum the experimental results it can be seen that, all nonsensitizable paths for traditional concepts actually can propagate transitions along them for some input wavforms. However, specilied time between input transitions (STBIT) and nilnimum perndssible pulse width (E) are two major factors to make some paths non-sensitizable.