Patent ID: 6455913
Filing Date: 2002-09-24
Classification: H01L

Abstract:
A copper fuse for an integrated circuit, comprising:at least two copper pads, located on a semiconductor substrate; a patterned passivation layer formed over the substrate for covering a portion of the copper pads, wherein the remaining portion of the copper pads is exposed; a conformal metal line disposed over the patterned passivation layer and the exposed portion of the copper pads, one end being electrically connected to one of the two copper pads and the other end being electrically connected to the other of the two copped pads; and a conformal barrier layer located between the metal line and two copper pads, wherein the conformal barrier layer covering a portion of the patterned passivation layer and the exposed portion of the copper pads; wherein at least the two copper pads and the metal line are used as a fuse.