Korea Institute of Science and Technology

Industry-university Cooperation Foundation Hanyang University

Gyuweon Hwang

Kyeong Seok Lee

Jaewook Kim

Jong-Keuk Park

InHo Kim

Joon Young Kwak

Yeonjoo Jeong

Jongkil Park

Suyoun Lee

Sangtae Kim

Taehwan Park

Nuri Oh

Namyoung Gwak

Seungki Shin

Hyeri Yoo

A neuromorphic circuit according to example embodiments of inventive concepts includes a first neuron array including a plurality of neuron circuits generating a spike signal; a first synapse array including a plurality of first synapse circuits to process and output the spike signal transmitted from the first neuron array; a second synapse array including a plurality of second synapse circuits; a first connecting block positioned between the first synapse array and the second synapse array and connecting the first synapse array and the second synapse array in response to a control signal; and a control logic to generate the control signal. The neuromorphic circuit may easily expand the size of the synapse element array to a desired size by using a connecting block.

Expandable neuromorphic circuit

Embodiments of inventive concepts relate to a neuromorphic circuit including a flash memory-based spike regulator capable of generating a stable spike signal with a small number of devices. The neuromorphic circuit may generate a simple and stable spike signal using a flash memory-based spike regulator. Therefore, it is possible to implement a semiconductor neuromorphic circuit at low power and low cost by using the spike regulator of the present invention. Example embodiments of inventive concepts provide a neuromorphic circuit comprising a control signal generator for generating a control signal for generating a pulse signal; and a spike regulator for generating a spike signal in response to the control signal. Wherein the spike regulator comprises a first transistor for switching an input signal transmitted to one terminal to the other terminal in response to the control signal; and a first flash memory type transistor having a drain terminal connected to the other terminal of the first transistor and transferring the switched input signal to a source terminal as a spike signal.

Neuromorphic circuit including spike regulator based on flash memory

Disclosed are a surface-modified quantum dot surface-modified with a ligand complex having a specific structure on the surface of the semiconductor nanocrystal, a method for preparing the same, and a quantum dot-polymer composite or electronic device including the same.

Surface-modified quantum dots, preparation method thereof, and quantum dot-polymer composite and electronic device including the same

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Seoul, South Korea

Gyuweon Hwang