Seoul National University

Sung Yun Woo

Jong-Ho Lee

Won-Mook Kang

Provided is a neuromorphic system using a neuron circuit. The neuromorphic system includes: one or two or more neuron circuits configured to output a firing signal according to signals input from a synapse array; a homeostatic circuit for each neuron circuit; and a global self-controller configured to generate and provide control signals for the neuron circuits by using the firing signal output from the neuron circuits. The neuron circuit includes a neuromorphic device and an output circuit that outputs the firing signal of the neuromorphic device. The global self-controller generates and supplies a reset signal to the neuromorphic device of the fired neuron circuit, and the global self-controller generates and supplies a lateral inhibition signal to the neuromorphic device of the non-fired neuron circuit. The homeostatic circuit alleviates inhibition of other neurons by the neurons with a predominant firing function.

Neuromorphic system

Provided are a neuromorphic device and a neuromorphic circuit using the neuromorphic device. The neuromorphic device is configured to include a first semiconductor region formed on a substrate in a wall shape or a dumbbell shape; first, second, third, and fourth doped regions sequentially formed in the first semiconductor region; first and second gate insulating film stacks disposed on the respective side surfaces of the second doped region; first and second gate electrodes respectively disposed on the respective side surfaces of the second doped region; the first and second gate electrodes disposed on the respective side surface of the second doped region, the first and second gate electrodes being electrically insulated from the second doped, region by the first and second gate insulating film stacks; and first and second electrodes electrically connected to the first and fourth doped regions, respectively.

Growing community of inventors

Seoul, South Korea

Sung Yun Woo