Patent ID: 6815321
Filing Date: 2004-11-09
Classification: H01L

Abstract:
A method of making a thin-film transistor, comprising the steps of:depositing a first metal layer on a substrate; depositing a second metal layer on the first metal layer without forming a photoresist on the first metal layer beforehand; forming a photoresist having a predetermined width on the second metal layer; anisotropically etching the first and second metal layers so such that the first metal layer and the second metal layer have the same width of the photoresist by using the photoresist as a mask, isotropically etching the second metal layer such that the second metal layer is narrower than the first metal layer by about 1 &mgr;m to about 4 &mgr;m by using the photoresist as a mask, thus forming a gate having a double-layered structure including the first and second metal layers; and removing the photoresist.