Electron device having a current channel of dielectric material
AssigneeFujitsu Limited
InventorHirotaka Tamura
Life of this patent
Estimating the term…
Abstract
An electron device comprises a first dielectric layer (103) having a first thickness determined to allow the tunneling of carriers therethrough and a first dielectric constant, a second dielectric layer (104) provided in contact with the first dielectric layer, the second dielectric layer having a second thickness substantially larger than the first thickness and a second dielectric constant that is substantially larger than the first dielectric constant, a first electrode (101) provided on the first dielectric layer for injecting the carriers, and a second electrode (108) provided in contact with the second dielectric layer for controlling a flow of the carriers through the second dielectric layer in response to a control voltage supplied thereto.
Claims40
An electron device, comprising:
- a first dielectric layer having an upper major surface and an opposing lower major surface, said first dielectric layer having a first thickness determined to allow the tunneling of carriers therethrough and a first dielectric constant, said first dielectric layer acting as a tunneling barrier;
- a second dielectric layer having an upper major surface in direct contact with the lower major surface of the first dielectric layer and an opposing lower major surface, said second dielectric layer having a second thickness substantially larger than the first thickness and a second dielectric constant that is substantially larger than the first dielectric constant;
- first electrode means provided on the upper major surface of the first dielectric layer for injecting the carriers into the first dielectric layer;
- and
- second electrode means provided in contact with the second dielectric layer, said second electrode means being applied with a control voltage for controlling a flow of the carriers through the second dielectric layer.
A transistor, comprising:
- a first electrode for injecting carriers, said first electrode having an upper major surface and a lower major surface;
- a first dielectric layer having an upper major surface and a lower major surface and provided on the upper major surface of the first electrode such that the lower major surface of the first dielectric layer makes a direct contact with the upper major surface of the first electrode, said first dielectric layer having a first dielectric constant;
- a second dielectric layer having an upper major surface and a lower major surface and provided on the upper major surface of the first dielectric layer such that the lower major surface of the second dielectric layer makes a direct contact with the upper major surface of the first dielectric layer, said second dielectric layer having a dielectric constant substantially larger than the first dielectric constant;
- a second electrode connected to the second dielectric layer for applying a control voltage controlling a potential level of the conduction band and the valence band of the second dielectric layer;
- a third dielectric layer having an upper major surface and a lower major surface and provided on the upper major surface of the second dielectric layer with the lower major surface of the third dielectric layer making a direct contact with the upper major surface of the second dielectric layer, said third dielectric layer having a third dielectric constant substantially smaller than the second dielectric constant;
- and
- a third electrode having an upper major surface and a lower major surface and provided on the upper major surface of the third dielectric layer for collecting the carriers;
- said second electrode being applied with the control voltage and controlling the flow of the carriers traveling from the first electrode to the third electrode, passing through the first, second and third dielectric layers, by controlling the potential level in the second dielectric layer.
Dependencies are inferred from the claim text.