发明名称 |
Methods of forming semiconductor device assemblies and interconnect structures, and related semiconductor device assemblies and interconnect structures |
摘要 |
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. |
申请公布号 |
US9520370(B2) |
申请公布日期 |
2016.12.13 |
申请号 |
US201414282606 |
申请日期 |
2014.05.20 |
申请人 |
Micron Technology, Inc. |
发明人 |
Gandhi Jaspreet S. |
分类号 |
H01L23/538;H01L23/00;H01L25/065 |
主分类号 |
H01L23/538 |
代理机构 |
TraskBritt |
代理人 |
TraskBritt |
主权项 |
1. A method of forming a semiconductor device assembly, comprising:
forming on a first substrate, at least one bond pad comprising a first nickel material over the first substrate, a first copper material directly on the first nickel material, and a solder-wetting material directly on the first copper material; forming on a second substrate, at least one conductive pillar comprising a second nickel material, a second copper material directly under the second nickel material, and a solder material directly under the second copper material; contacting the solder-wetting material with the solder material; and completely converting the first copper material, the solder-wetting material, the second copper material, and the solder material into a homogeneous intermetallic compound interconnect structure. |
地址 |
Boise ID US |