Patent ID: 9015094
Filing Date: 2015-04-21
Classification: G06N,H01L,H03K

Abstract:
1. A delay generator comprising at least one programmable resistor R pcm made of a chalcogenide-based phase-change material, said resistor R PCM having a time-varying resistance with an initial value R 0 when the chalcogenide-based phase-change material is in an amorphous phase, and a comparator circuit configured to receive at a first input port a reference electrical quantity that is stable over time, to receive at a second input port a variable electrical quantity representative of the time-varying resistance of the programmable resistor R pcm , to compare said reference electrical quantity and said variable electrical quantity and to generate an output signal s having a singularity, said singularity being generated when a difference between said reference electrical quantity and said variable electrical quantity changes sign.