Patent ID: 6010965
Filing Date: 2000-01-04
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, which method comprises:forming a first dielectric layer on a substrate;depositing a conductive layer comprising aluminum or an aluminum alloy on the first dielectric layer at a first temperature;etching the conductive layer to form a conductive pattern comprising a first metal line;forming a second dielectric layer on the first metal line;forming a through-hole in the second dielectric layer exposing a portion of an upper surface of the first metal line;filling the through-hole with a conductive material to form a via in contact with the first metal line;forming a second metal line on the second dielectric layer in electrical contact with the first metal line through the via; andforming a third dielectric layer on the second dielectric layer and second metal line; whereinthe first temperature is higher than any temperature employed during processing subsequent to depositing the aluminum or an aluminum alloy layer, and each aluminum or aluminum alloy layer is deposited at a temperature higher than any subsequent processing temperature.