Patent ID: 8581310

Claim:
Field-effect transistor comprising: a first source/drain electrode formed in a film made of semiconductor material by a first N-doped area, a second source/drain electrode formed in the film made of semiconductor material by a second P-doped area, an inter-electrode area formed in the film made of semiconductor material and separating the two source/drain electrodes, a gate electrode partially covering the inter-electrode area, a circuitry for applying a first potential difference between the first source/drain electrode and the second source/drain electrode configured to polarize the P-doped electrode to a potential higher than that of the N-doped electrode, a first generator of a first potential barrier in the film made of semiconductor material, the first potential barrier being opposed to the passage of charge carriers emitted by the first source/drain electrode, a second generator of a second potential barrier in the film made of semiconductor material, the second potential barrier being opposed to the passage of charge carriers emitted by the second source/drain electrode, the second potential barrier being shifted from the first potential barrier with respect to an axis connecting the two source/drain electrodes, wherein one of the first and second generators of potential barrier is configured to generate a potential barrier having a variable amplitude and is electrically connected to the gate electrode, the other of the first and second generators of potential barrier is electrically connected to a counter-electrode separated from the gate electrode by the film made of semiconductor material.