When providing accurate Design For Test (DFT) feedback to board designers, individual targets are usually inaccessible for a number of reasons. However, most DFT products only report the first reason a target is inaccessible. So this limited feedback is provided to the designer who corrects that single problem, only to find that when the analysis is run again on the new layout another reason code is found that needs to be addressed. This results in another round of changes with the designer and another revision.
With the Valor MSS Test Programming solution, multiple reason codes are generated when a target is inaccessible, providing the designer with all the issues in a single pass. They can then resolve all the issues at once and provide an updated layout that solves the lack of access. Find out more about the Valor MSS Test Programming solution from the following link: