Patent ID: 7297578
Filing Date: 2007-11-20
Classification: H01L

Abstract:
1. A method for producing a field effect transistor, comprising: a) forming a portion of a substantially single crystal temporary material above a surface of a conducting substrate with a layer of an electrically insulating material being located between the portion of temporary material and the substrate; b) depositing a semiconductor material on the portion of temporary material to form in a single depositing step a continuous structure including a central part connected to two opposed extensions approximately parallel to the surface of the substrate, wherein the extensions are located on either side of the portion of temporary material, the central part of the semiconductor material being substantially single crystal grown in situ by epitaxy from the portion of substantially single crystal temporary material; c) creating at least one access region for access to the portion of temporary material; d) removing at least part of the temporary material via the access region; e) forming an electrically insulating coating on exposed parts of the deposited semiconductor material; and f) forming at least one portion of a conducting material above and beneath the central part of the deposited semiconductor material.