Patent ID: 7315082

Claim:
An incomplete unfinished in process semiconductor device being manufactured used in ULSIC semiconductor fabrication processes comprising: a substrate having an insulating layer having a first opening having a first length and a first width, and having a second opening connected to said first opening while being located therebelow extending through said insulating layer, said second opening having a second length less than said first length of said first opening and having a second width being greater than said first width of said first opening; an etch stop layer having a resist layer located thereon non-aligned with said etch stop layer located over said insulating layer forming a part of said semiconductor device, said etch stop layer defining a third opening located above said first opening and connected to said first opening formed by the use of said resist layer with said etch stop layer affecting the definition of said third opening, said third opening having a third length at least equal to said first length of said first opening and a third width being greater than said first width of said first opening, said etch stop layer comprising one of silicon nitride, titanium nitride, and aluminum oxide; an adhesion layer lining said first, second, third openings; and a conductive material filling a portion of at least one of said first, second, and third openings.