Patent attributes
Devices and methods of fabricating devices are provided. One method includes: obtaining an intermediate semiconductor device having a dielectric layer, an insulating layer, and a plurality of metal lines, including a liner material and a first metal material; recessing the metal material of each metal line forming a set of cavities; filling the cavities with a protective cap; etching the protective cap and the liner material in the set of cavities; depositing a plurality of dielectric caps in the set of cavities; depositing an interlayer dielectric layer over the insulating layer and the plurality of dielectric caps; patterning a via in the interlayer dielectric layer; and depositing a lining and a second metal material in the interconnect area; wherein the second metal material is electrically insulated from the first metal in at least one of the plurality of metal lines.
