Patent ID: 6346471
Filing Date: 2002-02-12
Classification: H01L

Abstract:
A method of manufacturing a multilayer wiring structure including a plurality of wiring layers formed on a lowermost insulating film formed on a substrate, with an interlayer insulating film interposed between respective adjacent wiring layers of the plurality of wiring layers so as to insulate the respective adjacent wiring layers from each other and an electrode pad connected to a wiring of at least one of said plurality of wiring layers, said method comprising:repeatedly forming one of (a) an opening having a shape corresponding to the shape of said electrode pad in the interlayer insulating film and filling conductive material into the opening to form a conductive film pattern, and (b) a conductive film pattern having the shape corresponding to the electrode pad and filling the interlayer insulating film in a portion around the conductive film pattern to form plural layers of conductive film patterns, forming said electrode pad as a laminate body of the conductive film patterns of the plural layers; and the formation of respective wiring layers is performed simultaneously with the formation of any one of said conductive film patterns of said plural layers.