Patent ID: 6055661
Filing Date: 2000-04-25
Classification: G01R

Abstract:
An on-the-fly integrated circuit (IC) testing system for testing a device under test (DUT) IC by employing a known-good IC (KGIC), said IC testing system comprising:a target system incorporating said known-good IC (KGIC) therein wherein said target system engaging said KGIC as an integrated part of said target system for executing a testing program for directly generating a plurality of spontaneous target system generated input signals to said KGIC and as a result of executing said testing program said KGIC further generating a plurality of spontaneous known-good output signals in response to said spontaneous target system generated input signals;an input signal transmitting means for transmitting said spontaneous target system generated input signals which are inputted to said KGIC as spontaneous target system generated test stimuli to said DUT IC for generating a plurality of spontaneous test output signals; andan output signal processing means for receiving and processing said spontaneous known-good output signals and said spontaneous test output signals for determining testing results therefrom whereby said DUT IC is tested with said spontaneous target system generated test stimuli without being limited by a finite number of priorly planned and generated test patterns as test stimuli.