Patent ID: 9570397
Date: 2017-02-14
CPC Classifications: H01L

Claim:
1. A method of forming a local interconnect structure, the method comprising: forming a substrate including a dielectric layer and at least one semiconductor contact structure embedded in the dielectric layer, the at least one contact structure formed between opposing non-conductive spacers; forming at least one contact trench in the dielectric layer, the at least one contact trench extending between the spacers so as to expose the at least one semiconductor contact structure; and performing a split damascene process that includes forming in the dielectric layer a local conductive material layer independently from a first contact via so as to establish a conductive path between the at least one semiconductor contact structure and the local conductive material layer, wherein the split damascene process further comprises: depositing a second conductive material directly on an upper surface of the first contact via to form a local conductive material layer.