Semiconductor device assemblies including intermetallic compound interconnect structures

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United States of America Patent

PATENT NO 9881886
APP PUB NO 20170062365A1
SERIAL NO

15350926

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Abstract

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A method of forming a semiconductor device assembly comprises forming on a first substrate, at least one bond pad comprising a first nickel material over the first substrate, a first copper material on the first nickel material, and a solder-wetting material on the first copper material. On a second substrate is formed at least one conductive pillar comprising a second nickel material, a second copper material directly contacting the second nickel material, and a solder material directly contacting the second copper material. The solder-wetting material is contacted with the solder material. The first copper material, the solder-wetting material, the second copper material, and the solder material are converted into a substantially homogeneous intermetallic compound interconnect structure. Additional methods, semiconductor device assemblies, and interconnect structures are also described.

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Patent Owner(s)

Patent OwnerAddress
MICRON TECHNOLOGY INCIDAHO IDAHO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gandhi, Jaspreet S Boise, US 76 636

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