Patent ID: 8338291
Filing Date: 2012-12-25
Classification: H01L

Abstract:
1. A method of producing a transistor comprising: providing a substrate including in order a first electrically conductive material layer and a second electrically conductive material layer; depositing a resist material layer over the second electrically conductive material layer; patterning the resist material layer to expose a portion of the second electrically conductive material layer; removing some of the second electrically conductive material layer to create a reentrant profile in the second electrically conductive material layer itself in which a first portion of the second electrically conductive material layer overhangs a second portion of the second electrically conductive material layer, and to expose a portion of the first electrically conductive material layer; and causing the second electrically conductive material layer to overhang the first electrically conductive material layer by removing some of the first electrically conductive material layer.