Patent ID: 6780777
Filing Date: 2004-08-24
Classification: H01L

Abstract:
A method for forming a metal layer of a semiconductor device, comprising the steps of:continuously forming a lower conductive layer on a wafer having a predetermined substructure and an inter-layer insulating film on the lower conductive layer; forming a contact hole by etching a predetermined portion of the inter-layer insulating film whereby the lower conductive layer is exposed; removing moisture contained in the contact hole and the inter-layer insulating film of the wafer by degassing; forming a metal junction layer on an entire surface of the contact hole and the inter-layer insulating film thereby being connected to the lower conductive film; forming a first aluminum or aluminum alloy layer on the metal junction layer; forming a second aluminum or aluminum alloy layer on the first aluminum or aluminum alloy layer; coating an anti-reflection film on the second aluminum or aluminum alloy layer; and, forming a pattern by masking etching on the second aluminum or aluminum alloy layer.