Patent ID: 6469342
Filing Date: 2002-10-22
Classification: H01L

Abstract:
A silicon nitride read-only memory (NROM) that prevents an antenna effect, comprising:a substrate having an isolation structure and a grounding doped region therein; a word line that covers the substrate; an electron-trapping layer, and wherein the electron-trapping layer is positioned between the word line and the substrate; a dielectric layer covering the word line, the grounding doped region and substrate; a metal interconnect on the dielectric layer, wherein the metal line is electrically connected to the word line; and a metal protection line on the dielectric layer and over the isolation structure and the metal protection line electrically connects the word line and the grounding doped region in the substrate, wherein a resistance of the protection line is higher than that of the word line and wherein the metal protection line has a thickness smaller than that of the metal interconnect.