Patent ID: 7956425
Filing Date: 2011-06-07
Classification: H01L

Abstract:
1. A thin film transistor (TFT), comprising: a) a semiconductor layer comprising source and drain terminals and a channel region therebetween; b) a gate, and a gate dielectric layer between the gate and the channel region; c) a lightly doped or undoped dielectric layer adjacent to the gate and the gate dielectric layer, in contact with the source and drain terminals; d) a heavily doped dielectric layer, over or in contact with said lightly doped or undoped dielectric layer, the heavily doped dielectric layer comprising a first material which comprises a dopant therein; and e) electrically functional source/drain extensions in the channel region, adjacent to the source and drain terminals, comprising a second material which comprises the same dopant as the heavily doped dielectric layer.