Patent ID: 7943929
Filing Date: 2011-05-17
Classification: H01L

Abstract:
1. A thin film transistor, comprising: a substrate; a metal catalyst layer formed on and across the entire substrate; a first capping layer formed on and across the entire metal catalyst layer; a second capping layer pattern formed on and across less than the entire first capping layer; and a semiconductor layer pattern formed on the second capping layer pattern and crystallized by a metal catalyst of the metal catalyst layer, wherein the metal catalyst layer is between the substrate and the first capping layer, the first capping layer is between the metal catalyst layer and the second capping layer pattern, and the second capping layer pattern is between the first capping layer and the semiconductor layer pattern, and wherein the semiconductor layer pattern comprises a channel layer and the channel layer is formed apart from an end of the second capping layer pattern by 1 to 5 μm.