Title:
半導体装置および電子機器
Document Type and Number:
Japanese Patent JP6904682
Kind Code:
B2
Abstract:
A neuron circuit can switch between two functions: as an input neuron circuit, and as a hidden neuron circuit. An error circuit can switch between two functions: as a hidden error circuit, and as an output neuron circuit. A switching circuit is configured to be capable of changing the connections between the neuron circuit, a synapse circuit, and the error circuit. The synapse circuit includes an analog memory that stores data that corresponds to the connection strength between the input neuron circuit and the hidden neuron circuit or between the hidden neuron circuit and the output neuron circuit, a writing circuit that changes the data in the analog memory, and a weighting circuit that weights an input signal in reaction to the data of the analog memory and outputs the weighted output signal. The analog memory includes a transistor comprising an oxide semiconductor with extremely low off-state current.
Inventors:
Yoshimoto Kurokawa
Application Number:
JP2016204217A
Publication Date:
July 21, 2021
Filing Date:
October 18, 2016
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
G06N3/063; G06G7/60; H01L29/786
Domestic Patent References:
| JP2013242954A |
Foreign References:
| US20040083193 |
Other References:
Takashi Morie et al.,"An all-analog expandable neural network LSI with on-chip backpropagation learning",IEEE Journal of Solid-State Circuits,米国,IEEE,1994年 9月,vol.29, no.9,pp.1086-1093
Yutaka Arima et al.,"A self-learning neural network chip with 125 neurons and 10 K self-organization synapses" ,IEEE Journal of Solid-State Circuits,米国,IEEE,1991年 4月,vol.26, no.4,pp. 607-611
Yutaka Arima et al.,"A self-learning neural network chip with 125 neurons and 10 K self-organization synapses" ,IEEE Journal of Solid-State Circuits,米国,IEEE,1991年 4月,vol.26, no.4,pp. 607-611
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