Patent ID: 7208756
Filing Date: 2007-04-24
Classification: H01L,Y02E

Abstract:
1. An organic semiconductor-based thin film transistor with reduced contact resistance comprising: a substrate, a gate electrode, a gate dielectric layer overlapping at least a portion of said gate electrode, a drain electrode and a source electrode which are electrically isolated and define a channel region between them, said drain electrode overlaps a first portion of said gate electrode and gate dielectric layer and said source electrode overlaps a second portion of said gate electrode and gate dielectric layer, a source interfacial layer overlapping at least a portion of said source electrode, said source electrode with said source interfacial layer overlaps a first portion of said channel region adjacent to a leading edge of said source electrode, and an active channel layer deposited on said channel region, said active channel layer overlaps at least a part of said drain electrode and at least a part of said source electrode with said source interfacial layer, forming a source electrode/source interfacial layer/active channel layer sandwiched structure for the reduction of contact resistance between said source electrode and said active channel layer, wherein the potential barrier height between said source electrode and said active channel layer is reduced.