PROPOSAL OF ADAPTIVE-LEARNING NEURON CIRCUITS WITH FERROELECTRIC ANALOG-MEMORY WEIGHTS

被引:143
作者
ISHIWARA, H
机构
[1] Precision and Intelligence Laboratory, Tokyo Institute of Technology, Midori-ku, Yokohama, 221
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1993年 / 32卷 / 1B期
关键词
NEURAL NETWORK; FERROELECTRIC FILM; SILICON-ON-INSULATOR; MISFET; PULSE FREQUENCY MODULATION; SYNAPSE; ADAPTIVE LEARNING; OPTICAL CONNECTION;
D O I
10.1143/JJAP.32.442
中图分类号
O59 [应用物理学];
学科分类号
摘要
Novel adaptive-learning neuron circuits are proposed, in which a pulse frequency modulation (PFM) system is used and the interval of output pulses is continuously changed through the learning process. Key components of the circuits are adaptive-learning metal-insulator-semiconductor field-effect transistors (MISFETs) in which the gate insulator films are composed of a ferroelectric material and their polarity is gradually changed by applying input pulses to the gates. In the multiple-input neuron circuits, it is proposed that the adaptive-learning MISFETs be connected in parallel and the function corresponding to the excitatory and inhibitory synapses in a human brain be realized by applying positive and negative pulses to the gates of MISFETs. Finally, the layout of the synapse array between two neuron layers is discussed and the effectiveness of using a silicon-on-insulator (SOI) structure is demonstrated.
引用
收藏
页码:442 / 446
页数:5
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