Fig. 2
From: NeoHebbian synapses to accelerate online training of neuromorphic hardware
High-level description of the thermal neoHebbian synapse operation: a Three key stages involved in the training operation of e-prop: spike integration (shaded blue), eligibility-update (shaded olive), and weight update (shaded red). Arrangement of the heater and ReRAM during b Spike integration, c e-update, and d Weight update phases. The red arrow depicts the thermal coupling between the heater and ReRAM. e Design of a crossbar array illustrating 3D-integrated heater and ReRAM cells.
