Patent ID: 7112458
Filing Date: 2006-09-26
Classification: H01L

Abstract:
1. A method of fabricating a liquid crystal -display device-, the method comprising the steps of: providing a substrate; forming a polysilicon layer over the substrate; performing a first photo-etching process to define at least one active area and a bottom storage electrode over the substrate; performing a second photo-etching process to form a first mask over the substrate; performing a P-type ion implantation process by utilizing the first mask as a mask to form a source electrode and a drain electrode in the active area and to dope dopants into the bottom storage electrode simultaneously; removing the first mask; forming a metal layer over the substrate to cover the active area and the bottom storage electrode; performing a third photo-etching process to form a gate electrode over the active area and to form a top storage electrode on the bottom storage electrode; forming a first isolation layer over the substrate to cover the gate electrode and the top storage electrode; performing a fourth photo-etching process to form at least one first contact hole electrically connected to the source electrode, the drain electrode, and the gate electrode; forming a conductive layer over the first isolation layer to fill in the first contact hole; performing a fifth photo-etching process to form a source wire and a drain wire on the first isolation layer, the source wire and the drain wire being electrically connected to the source electrode and the drain electrode through the first contact hole respectively; and forming a second isolation layer over the substrate to cover the first isolation layer, the source wire, and the drain wire.