Patent ID: 9153698
Filing Date: 2015-10-06
Classification: H01L

Abstract:
1. A thin film transistor comprising: a substrate; a post on the substrate, the post having a height dimension extending away from the substrate to a top portion of the post, the top portion of the post extending a distance beyond a bottom portion of the post in a direction parallel to the substrate to define a reentrant profile; a conformal conductive gate layer on an edge of the post in the reentrant profile and not over the top portion of the post, the conformal conductive gate layer including a portion that extends along the substrate; a conformal insulating layer on the gate layer in the reentrant profile; a conformal semiconductor layer on the insulating layer in the reentrant profile; a first electrode located in contact with a first portion of the semiconductor layer over the top portion of the post; and a second electrode located in contact with a second portion of the semiconductor layer not over the top portion of the post.