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US 8,014,188 B2Granted
Electric element, switching element, memory element, switching method and memory method
AssigneeKabushiki Kaisha Toshiba
InventorsYumiko Oyasato, Hideyuki Nishizawa, Kenji Sano
Life of this patent
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Abstract
An electric element includes a pair of electrodes; and a plurality of carbon nanotubes of three-dimensional network structure which are located between the pair of electrodes. The electric element can be applied for a memory element and the like.
Claims11
An electric element, comprising:
- a pair of electrodes;
- and
- a plurality of powder-condensed and solidified carbon nanotubes of three-dimensional network structure which are located between the pair of electrodes.
A switching method, comprising:
- disposing a plurality of powder-condensed and solidified carbon nanotubes of three-dimensional network structure between a pair of electrodes to form an electric element;
- applying a first voltage beyond a critical voltage related to current generation to the electric element so as to turn the electric element on during voltage application to the electric element;
- and
- applying a second voltage not more than the critical voltage to the electric element so as to turn the electric element off under the condition of no current during another voltage application to the electric element.
1 more element
A memory method, comprising:
- disposing a plurality of powder-condensed and solidified carbon nanotubes of three-dimensional network structure between a pair of electrodes to form an electric element;
- applying a first voltage beyond a critical voltage related to current generation to the electric element so as to render a resistance of the electric element a first state during voltage application to the electric element;
- applying a second voltage not more than the critical voltage to the electric element so as to render the resistance of the electric element a second state during another voltage application to the electric element;
- and
- allotting data to the first state and the second state of the resistance of the electric element, respectively.
2 more elements
Dependencies are inferred from the claim text.