Published Paper Details:

A low-power (LP) programmable generator capable of producing pseudorandom test patterns with desired toggling levels and enhanced fault coverage gradient compared with the best-to-date binary robust invariant scalable key (BRISK)-based pseudorandom test pattern generators. It is comprised of a linear finite state machine (a linear feedback shift register or a ring generator) driving an appropriate phase shifter, and it comes with a number of features allowing this device to produce binary sequences with preselected toggling (PRESTO) activity. In this method to automatically select several controls of the generator offering easy and precise tuning. The same technique is subsequently employed to deterministically guide the generator toward test sequences with improved fault-coverage-to pattern- count ratios. In an LP test Compression method that allows shaping the test power envelope in a fully predictable, accurate, and flexible fashion by adapting the PRESTO-based logic BRISK (LBRISK) infrastructure. The proposed hybrid scheme efficiently combines test compression with LBRISK, where both techniques can work synergistically to deliver high quality tests. Experimental results obtained for industrial designs illustrate the feasibility of the proposed test schemes and are reported.