Patent ID: 6306746
Filing Date: 2001-10-23
Classification: H01L

Abstract:
A method for making a semiconductor device, including a substrate, an insulative layer disposed on the substrate and a metal fuel link disposed on the insulative layer, comprising:providing a primary dielectric layer over the metal fuse link, the primary dielectric layer having a predetermined deposition thickness over the fuse link;covering the primary dielectric layer with an etch interrupting layer;covering the etch interrupting layer with a secondary dielectric layer;removing a portion of the secondary dielectric layer, the etch interrupting layer and the remaining secondary dielectric layer providing an interlayer dielectric having a selected thickness that is greater than the thickness of the primary dielectric layer;forming a metal layer over the interlayer dielectric; andremoving the layers over the etch interrupting layer and above the metal fuse link, and removing the etch interrupting layer over the primary dielectric layer and exposing a portion of the primary dielectric layer disposed above the metal fuse link.