Patents Examined by Cuong Qwang Nguyen
  • Patent number: 6548901
    Abstract: An interconnect structure having reduced fringing fields of bottom corners of said interconnect structure and a method of fabricating the same is provided. The interconnect structure includes one or more interconnect levels one on top of each other, wherein each interconnect level is separated by a diffusion barrier and includes a dielectric stack of at least one low-k interlayer dielectric on at least one hybrid dielectric, said dielectrics having planar interfaces therebetween, each interconnect level further comprising metallic lines formed in said low-k interlayer dielectric, with the proviso that bottom horizontal portions of said metallic lines are not coincident with said interface, and said metallic lines are contained within said low-k interlayer dielectric. The interconnect structures may be fabricated such that top horizontal portions of the metallic lines are coplanar with a top surface of the low-k interlayer dielectric.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: April 15, 2003
    Assignee: International Business Machines Corporation
    Inventors: William Cote, Timothy Joseph Dalton, Daniel Charles Edelstein, Stephen McConnell Gates