Self-forming embedded diffusion barriers

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United States of America Patent

PATENT NO 9190321
SERIAL NO

13858125

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Abstract

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Interconnect structures containing metal oxide embedded diffusion barriers and methods of forming the same. Interconnect structures may include an Mx level including an Mx metal in an Mx dielectric, an Mx+1 level above the Mx level including an Mx+1 metal in an Mx+1 dielectric, an embedded diffusion barrier adjacent to the Mx+1 dielectric; and a seed alloy region adjacent to the Mx+1 metal separating the Mx metal from the Mx+1 metal. The embedded diffusion barrier may include a barrier-forming material such as manganese, aluminum, titanium, or some combination thereof. The seed alloy region may include a seed material such as cobalt, ruthenium, or some combination thereof.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cabral,, Jr Cyril Mahopac, US 92 768
Edelstein, Daniel C White Plains, US 301 6020
Li, Juntao Guilderland, US 578 3109
Nogami, Takeshi Schenectady, US 231 4170

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