Patent ID: 8314421
Filing Date: 2012-11-20
Classification: H01L

Abstract:
1. A manufacture method of a metal oxynitride thin film transistor with improved charge carrier mobility comprising the steps of: providing a first substrate; forming a first gate electrode over said first substrate; forming a first gate insulating layer, said first gate insulating layer overlaps at least a portion of said first gate electrode; forming a source electrode, said source electrode overlaps a first portion of said first gate insulating layer; forming a drain electrode, said drain electrode overlaps a second portion of said first gate insulating layer; and forming at least a first metal oxynitride active channel layer, said first metal oxynitride active channel layer overlaps at least a portion of said first gate insulating layer, at least a portion of said source electrode and at least a portion of said drain electrode, wherein said charge carry mobility of said first metal oxynitride active channel layer is controlled by controlling metal content and nitrogen to oxygen ratio in said first metal oxynitride active channel layer during said active channel layer deposition.