Patent ID: 7838427

Claim:
A method of planarizing a dielectric insulating layer comprising the steps of: providing a substrate; forming a first dielectric insulating layer on the substrate, said first dielectric insulating layer having a concave and convex portion on an upper surface of said first dielectric insulating layer adjacent a substantially planar portion on said upper surface defining a planarization level on said upper surface; forming an organic resinous layer on the first dielectric insulating layer having a thickness sufficient to cover the convex portion and exposing the convex portion using a dry etching chemistry without using a CMP process, said exposed convex portion protruding through an upper surface of said organic resinous layer; isotropically etching the convex portion to be about co-planar with said planarization level following said exposing the convex portion using a dry etching chemistry; removing the organic resinous layer; and, forming a second dielectric insulating layer on the first dielectric insulating layer including said isotropically etched convex portion.