According to an embodiment of the present invention, a spike neural network circuit may comprise: an axon generating an input spike signal; a synapse including a first transistor outputting current according to a weight and a second transistor connected to the first transistor and outputting a current according to the input spike signal; a neuron comparing a value according to the current outputted from the synapse and a reference value and generating an output spike signal based on the comparison result; and radiation source attached to a substrate on which the synapse is formed, outputting radiation particles to the synapse, and increasing sizes of threshold voltages of the first and second transistors of the synapse.
SPIKE NEURAL NETWORK CIRCUIT INCLUDING RADIATION SOURCE