Patent ID: 9373580
Filing Date: 2016-06-21
CPC Classification: G03F,H01L,Y10T

Claim Text:
1. A lithographic structure comprising: a dielectric material layer located on a substrate; a first metallic hard mask layer including at least one line pattern and located over said dielectric material layer; at least another dielectric material layer located on said first metallic hard mask layer; a second metallic hard mask layer located on said at least another dielectric material layer and including at least a set of at least one hole corresponding to a first lithographic pattern and a set of at least another hole corresponding to a second lithographic pattern different from said first lithographic pattern; and an organic planarization layer located on said second metallic hard mask layer and including at least one trench corresponding to said second lithographic pattern, wherein said organic planarization layer completely fills each hole in said set of at least one hole, and each of said at least one trench exposes entire sidewalls, but not any of top surfaces, of said second metallic hard mask layer.