Patent ID: 8815753
Filing Date: 2014-08-26
Classification: B82Y,H01L,Y10T

Abstract:
1. A method comprising: receiving a substrate, the substrate comprising a porous dielectric material forming a surface; forming a molecularly self-assembled layer on the surface of the porous dielectric material, the molecularly self-assembled layer comprising molecules having chain lengths and head groups selected to seal pores on the surface of the porous dielectric material; sealing the pores on the surface of the porous dielectric material includes tailoring at least one constituent of the molecularly self-assembled layer; processing the molecularly self-assembled layer using one of cleaning, reactive etching, vaporization, annealing, or curing the substrate; and forming a barrier layer over the molecularly self-assembled layer after processing the molecularly self-assembled layer, wherein the barrier layer comprises a titanium-based material, a tantalum based material, a ruthenium based material, or a tungsten-based material, wherein the molecularly self-assembled layer prevents materials of the barrier layer from contacting the porous dielectric material of the substrate.