Patent ID: 6150250
Filing Date: 2000-11-21
Classification: H01L,Y10S

Abstract:
A method of forming a conductive layer comprising the steps of:(a) forming a first conductive lamination layer on an insulating film covering a substrate, the first conductive layer being made of refractory metal silicide at least at an uppermost layer of the first conductive lamination layer;(b) forming a second conductive layer for antireflection on the first conductive lamination layer through photolithography, the second conductive layer being made of TiN or TiON and containing a direction <200> of the Miller indices notation;(c) forming a resist film having a desired pattern on the second conductive layer through photolithography;(d) patterning the second conductive layer through dry etching using the resist layer as a mask to partially leave the second conductive layer; and(e) patterning the first conductive lamination layer through dry etching using the resist layer and/or the left portion of the second conductive layer as a mask to partially leave the first conductive lamination layer,wherein a lamination of a left portion of the first conductive lamination layer and the left portion of the second conductive layer is used as a conductive layer for an electrode or a wiring layer.