Biristor coupled oscillators with biristor and oscillatory neural network using the same

The biristor-based oscillating neural network addresses the limitations of conventional oscillators by using silicon semiconductor-based biristors, achieving compatibility with semiconductor processes and enabling miniaturization while solving the Vertex Coloring Problem and functioning as an Ising Machine.

KR102993029B1Active Publication Date: 2026-07-21KOREA ADVANCED INST OF SCI & TECH
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Patent Information

Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
KOREA ADVANCED INST OF SCI & TECH
Filing Date
2024-07-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Conventional oscillatory neural networks using insulator-metal transition materials or magnetic tunnel junction-based oscillators face limitations due to large and complex circuits, and incompatibility with existing semiconductor processes, leading to high power consumption and integration challenges.

Method used

A biristor-based coupled oscillator and oscillating neural network utilizing silicon semiconductor-based biristors, which are compatible with existing semiconductor processes and enable miniaturization, allowing phase synchronization of oscillating signals through a coupling capacitor.

Benefits of technology

The solution provides high compatibility with semiconductor processes, enables miniaturization, and can solve the Vertex Coloring Problem by converging phase differences to a predetermined value, functioning as an Ising Machine.

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Abstract

A biristor-based coupled oscillator comprises a power source, a first oscillator, a second oscillator, and a coupling capacitor. The first oscillator comprises a first resistor and a first biristor. The first resistor is electrically connected to the power source. The first biristor is connected in series with the first resistor. The first oscillator outputs a first oscillation signal. The second oscillator comprises a second resistor and a second biristor. The second resistor is electrically connected to the power source. The second biristor is connected in series with the second resistor. The second oscillator outputs a second oscillation signal. The coupling capacitor is electrically connected to the first resistor, the first biristor, the second resistor, and the second biristor. Each of the first biristor and the second biristor comprises a silicon semiconductor. The phase difference between the first oscillation signal and the second oscillation signal converges to a predetermined value.
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