Patent ID: 6815772
Filing Date: 2004-11-09
Classification: H01L

Abstract:
An electronic device comprising at least one thin film transistor, said thin film transistor comprising:a substrate having an insulating surface; a semiconductor layer formed over said insulating surface; a source region and a drain region formed in said semiconductor layer; a channel region in said semiconductor layer between said source region and said drain region; a first gate electrode adjacent to one side of said channel region; and a second gate electrode adjacent to the other side of said channel region opposed to said first gate electrode, wherein said second gate electrode is overlapped with said source region and said second gate electrode is not overlapped with said drain region, wherein said second gate electrode is overlapped with a first portion of said channel region so that a second portion of said channel region is offset from said second gate electrode while said first gate electrode is overlapped with an entire portion of said channel region, wherein said second gate electrode and source region are electrically connected, and wherein said electronic device is a logic circuit.