Patent ID: 6495405
Filing Date: 2002-12-17
Classification: C30B,H01L

Abstract:
A method of processing an LCD substrate comprising the steps of:a) depositing amorphous silicon on a substrate; b) forming row drivers by annealing a first plurality of regions on the substrate using a lateral crystallization ELA process to form polycrystalline regions having elongated grain structures with a first orientation and forming a first plurality of TFT structures having channels oriented substantially parallel to the elongated grain structures with the first orientation; and c) forming column drivers by annealing a second plurality of regions on the substrate using a lateral crystallization ELA process to form polycrystalline regions having elongated grain structures with a second orientation, which is different from the first orientation and forming a second plurality of TFT structures having a channel oriented substantially parallel to the elongated grain structures of the second polycrystalline region.