Patent ID: 6936848
Filing Date: 2005-08-30
Classification: H01L

Abstract:
1. A structure of a multi-gate thin film transistor (TFT) for LCD, comprising: a polycrystalline silicon layer formed on a substrate having a source region, a first doped region, a first gate channel, a second doped region, a second gate channel, a third doped region, and a drain region, further, said polycrystalline silicon layer having geometry of L-shaped from top view having a first horizontal section formed said source region at an end thereof and a first vertical section formed said drain region at an opposite end thereof; a multi-gate, including a scanning line and an extension portion having a L-shape, formed on said substrate, and said multi-gate intersected with said polycrystalline silicon layer so that said first gate channel and said second gate channel are formed; and a gate oxide layer formed in between said multi-gate and said polycrystalline silicon layer.