Patent ID: 8598031
Filing Date: 2013-12-03
Classification: H01L

Abstract:
1. A method for forming a semiconductor device comprising: providing a substrate prepared with a dielectric layer formed thereon, wherein the dielectric layer has a hydrophobic characteristic, and the dielectric layer has not been subjected to a chemical mechanical polishing process; non-selectively forming a sacrificial layer on the dielectric layer, wherein the sacrificial layer can be removed by a non-etch or non-polishing process; forming a hard mask layer on the sacrificial layer; patterning the dielectric, sacrificial and hard mask layers to form an interconnect opening; filling the interconnect opening with a conductive material to form an interconnect; processing the conductive material to produce a top planar surface of the conductive material in the interconnect opening, wherein the hard mask layer is removed to expose a top surface of the sacrificial layer; and removing the sacrificial layer using a non-etch or non-polishing process while maintaining the hydrophobic characteristic of the dielectric layer.