Patent ID: 8883633
Filing Date: 2014-11-11
Classification: B82Y,H01L,Y10T

Abstract:
1. A method comprising: receiving a substrate, the substrate comprising a dielectric region and a conductive region; wherein the conductive region is interleaved with the dielectric region; wherein the dielectric region comprises a plurality of pores exposed at a top surface of the dielectric region; and forming a masking layer on the substrate; forming a capping layer on the conductive region; wherein the masking layer is selectively formed on the dielectric region and substantially not on the conductive region; and wherein the masking layer comprises a molecular species chosen such that at least one of the head group, terminal group and molecular length characteristic of molecules of the molecular species ensures that the majority of the plurality of exposed pores is sealed, such that diffusion of material into the dielectric region via the exposed pores is inhibited; wherein the capping layer is selected from the group consisting of: a cobalt-tungsten-phosphorous alloy, a cobalt-boron alloy, a nickel-molybdenum-phosphorous alloy, a tungsten alloy, cobalt-containing alloys, nickel-containing alloys, and transition-metal alloys.