Patent ID: 7936409
Filing Date: 2011-05-03
Classification: G02F,H01L

Abstract:
1. A method for fabricating a liquid crystal display comprising the steps of: providing a first substrate; forming a gate electrode and a gate line on the first substrate; forming a first insulating layer on the first substrate; forming an active pattern, an ohmic-contact layer, and a diffusion preventing layer at an upper portion of the gate electrode using dry etching; forming source and drain electrodes on the diffusion preventing layer using a wet etching; forming a second insulating layer on the first substrate; forming a contact hole by removing a portion of the second insulating layer and exposing a portion of the drain electrode; forming a pixel electrode electrically connected with the drain electrode via the contact hole; and attaching the first and second substrates, wherein the diffusion preventing layer includes a metal tip that protrudes beyond the source and drain electrodes.