Patent ID: 6472306
Filing Date: 2002-10-29
Classification: H01L

Abstract:
A method of forming a dual damascene opening, comprising the steps of:providing a semiconductor structure having at least one exposed metal line; forming a spin-on-polymer layer over said semiconductor structure and said metal line; forming a CVD dielectric material layer upon said spin-on-polymer layer; patterning said CVD dielectric material layer to form a CVD dielectric material layer via over said metal line; patterning said spin-on-polymer layer to form a spin-on-polymer layer via opening continuous and contiguous with said CVD dielectric material layer via and exposing a portion of said metal line; and patterning said CVD dielectric material layer adjacent said CVD dielectric material layer via to form a CVD dielectric material layer trench; said spin-on-polymer layer via opening and said CVD dielectric material layer trench forming a dual damascene opening.