Patent ID: 6022802
Filing Date: 2000-02-08
Classification: H01L

Abstract:
A method for forming a dielectric layer comprising:providing a substrate;forming over the substrate a substrate layer;forming upon the substrate layer a pair of patterned conductor stack layers, the pair of patterned conductor stack layers comprising:a pair of patterned titanium nitride layers formed upon the substrate layer; anda pair of patterned aluminum containing conductor layers formed upon the pair of patterned titanium nitride layers; andforming upon the pair of patterned conductor stack layers and a portion of the substrate layer exposed interposed between the pair of patterned conductor stack layers a gap filling dielectric layer formed employing an ozone assisted sub-atmospheric pressure thermal chemical vapor deposition (SACVD) method, wherein:a substrate layer composition, a patterned conductor stack layer separation, a titanium nitride layer thickness and at least one of an ozone assisted sub-atmospheric pressure thermal chemical vapor deposition (SACVD) method deposition temperature and an ozone assisted sub-atmospheric pressure thermal chemical vapor deposition (SACVD) method deposition pressure are selected such that there is formed within the gap filling dielectric layer a void interposed between the pair of patterned conductor stack layers.