Patent ID: 7420253

Claim:
A transistor structure comprising: a semiconductor element extending in a longitudinal direction between a source zone and a drain zone, said element comprising a first part and a second part each connecting the source and drain zones, the first part having first and second sides that are opposite to one another, the second part being connected to the first side of the first part over a length between the source and drain zones; a first gate portion situated on the second side of the first part of the semiconductor element; second and third gate portions that are situated respectively on two opposite sides of the second part of the semiconductor element, in a direction perpendicular to the longitudinal direction; and first, second and third electrical insulation layers, respectively situated between the semiconductor element and the first, second and third gate portions, wherein the second part of the semiconductor element is connected to the first part of said element so that a transverse section of said element in a plane perpendicular to the longitudinal direction possesses a T shape.