Abstract:
Method of making at least one transistor strained channel semiconducting structure, comprising steps to form a sacrificial gate block and insulating spacers arranged in contact with the lateral faces of the sacrificial gate block, form sacrificial regions in contact with the lateral faces of said semiconducting zone, said sacrificial regions being configured so as to apply a strain on said semiconducting zone, remove said sacrificial gate block between said insulating spacers, replace said sacrificial gate block by a replacement gate block between said insulating spacers, remove said sacrificial regions, and replace said sacrificial regions by replacement regions in contact with the lateral faces of said semiconducting zone, on a semiconducting zone that will form a transistor channel region.
Abstract:
A field-effect transistor including an active zone comprises a source, a channel, a drain and a control gate, which is positioned level with the channel, allowing a current to flow through the channel between the source and drain along an x-axis, the channel comprising: a first edge of separation with the source; and a second edge of separation with the drain; the channel being compressively or tensilely strained, wherein the channel includes a localized perforation or a set of localized perforations along at least the first and/or second edge of the channel so as to also create at least one shear strain in the channel. A process for fabricating the transistor is provided.
Abstract:
A field-effect transistor including an active zone comprises a source, a channel, a drain and a control gate, which is positioned level with the channel, allowing a current to flow through the channel between the source and drain along an x-axis, the channel comprising: a first edge of separation with the source; and a second edge of separation with the drain; the channel being compressively or tensilely strained, wherein the channel includes a localized perforation or a set of localized perforations along at least the first and/or second edge of the channel so as to also create at least one shear strain in the channel. A process for fabricating the transistor is provided.
Abstract:
The method of manufacturing a structure comprising one or several strained semiconducting zones capable of forming one or several transistor channel regions, the method including the following steps: a) providing a substrate coated with a masking layer wherein there are one or several first slits exposing one or several first oblong semiconducting portions made of a first semiconducting material and extending in a first direction, b) making a second semiconducting material grow with a mesh parameter different from the mesh parameter of the first semiconducting material, so as to form one or several first semiconducting blocks strained along the first direction, on said one or several first oblong semiconducting portions.