Forming decoupled interconnects
Abstract:
A method for making a semiconductor apparatus includes forming a first bottom interconnect in a device area of a first dielectric layer; fabricating a device on top of the first bottom interconnect; capping the device with a first interlayer dielectric; exposing a logic area of the first dielectric layer that is adjacent to the device area by removing a portion of the first interlayer dielectric from the first dielectric layer while leaving another portion of the first interlayer dielectric that caps the device; and forming a second bottom interconnect in the logic area of the first dielectric layer. By forming the second bottom interconnect after the device fabrication and capping, damage to the device and to the second bottom interconnect is avoided.
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