Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-03-27
1992-12-15
James, Andrew J.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
257314, 257405, H01L 2978
Patent
active
051722046
ABSTRACT:
An artificial neural synapse (10) is constructed to function as a modifiable excitatory synapse. In accordance with an embodiment of the invention the synapse is fabricated as a silicon MOSFET that is modified to have ions within a gate oxide. The ions, such as lithium, sodium, potassium or fluoride ions, are selected for their ability to drift within the gate oxide under the influence of an applied electric field. In response to a positive voltage applied to a gate terminal of the device, positively charged ions, such as sodium or potassium ions, drift to a silicon/silicon dioxide interface, causing an increase in current flow through the device. The invention also pertains to assemblages of such devices that are interconnected to form an artificial neuron and to assemblages of such artificial neurons that form an artificial neural network.
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"Programmable Associative Memory Implemented in Silicon Technology" IBM Technical Disclosure Bulletin, vol. 31, No. 7, Dec. 1988.
Bowers Courtney A.
International Business Machines Corp.
James Andrew J.
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