Patent ID: 7374584
Filing Date: 2008-05-20
Classification: H01L,Y10S

Abstract:
1. An interconnects-forming apparatus, comprising: an interconnects-forming unit for embedding an interconnect material in interconnect recesses provided in an insulating film formed in a surface of a substrate while forming a metal film of the interconnect material on a surface of the insulating film; a first flattening unit for removing an extra metal material other than the metal material in the interconnect recesses and flattening the substrate surface, thereby forming interconnects; a first protective film-forming unit for forming a first protective film of a conductive material selectively on exposed surfaces of the interconnects; a second protective film-forming unit for forming a second protective film on the surface of the substrate having the thus-formed first protective film; an interlevel insulating film-forming unit for forming an interlevel insulating film on the surface of the substrate having the thus-formed second protective film; and a second flattening unit for flattening a surface of the interlevel insulating film; wherein the first protective film-forming unit is comprised of an electroless plating unit comprising a plating tank, a substrate holding mechanism, an automatic substrate transport mechanism, a plating solution circulation mechanism, a plating solution temperature control mechanism, and a liquid control mechanism having a plating solution analysis/replenishment function.