Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bonding
With a layer of Cu nanoparticle slurry, it's promising to achieve fast CuCu direct bonding at low temperature. To have a deeper insight and better control of the process, we apply molecular dynamics method to simulate the melting and sintering behavior of Cu nanoparticles during the direct bon...
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doaj-973ccd7971b64732b65565b0197052fc2020-11-26T13:31:39ZengElsevierMaterials & Design0264-12752021-01-01197109240Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bondingRui Wu0Xiuchen Zhao1Yingxia Liu2School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing, ChinaCorresponding author.; School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, ChinaWith a layer of Cu nanoparticle slurry, it's promising to achieve fast CuCu direct bonding at low temperature. To have a deeper insight and better control of the process, we apply molecular dynamics method to simulate the melting and sintering behavior of Cu nanoparticles during the direct bonding process. The melting points of nanoparticles from 2 nm to 9 nm are simulated to be from 963 K to 1298 K. The smaller the diameter of the nanoparticle, the less stable it is. At the same sintering temperature, the sintering time for 2 nm nanoparticles is less than half of that for 8 nm nanoparticles. Based on these atomic insights, if we can synthesis Cu nanoparticles as small as 2 nm, the CuCu direct bonding temperature and time can be reduced further.http://www.sciencedirect.com/science/article/pii/S0264127520307759Cucu direct bondingCu nanoparticlesMolecular dynamicsPhase transformation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rui Wu Xiuchen Zhao Yingxia Liu |
spellingShingle |
Rui Wu Xiuchen Zhao Yingxia Liu Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bonding Materials & Design Cucu direct bonding Cu nanoparticles Molecular dynamics Phase transformation |
author_facet |
Rui Wu Xiuchen Zhao Yingxia Liu |
author_sort |
Rui Wu |
title |
Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bonding |
title_short |
Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bonding |
title_full |
Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bonding |
title_fullStr |
Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bonding |
title_full_unstemmed |
Atomic insights of Cu nanoparticles melting and sintering behavior in CuCu direct bonding |
title_sort |
atomic insights of cu nanoparticles melting and sintering behavior in cucu direct bonding |
publisher |
Elsevier |
series |
Materials & Design |
issn |
0264-1275 |
publishDate |
2021-01-01 |
description |
With a layer of Cu nanoparticle slurry, it's promising to achieve fast CuCu direct bonding at low temperature. To have a deeper insight and better control of the process, we apply molecular dynamics method to simulate the melting and sintering behavior of Cu nanoparticles during the direct bonding process. The melting points of nanoparticles from 2 nm to 9 nm are simulated to be from 963 K to 1298 K. The smaller the diameter of the nanoparticle, the less stable it is. At the same sintering temperature, the sintering time for 2 nm nanoparticles is less than half of that for 8 nm nanoparticles. Based on these atomic insights, if we can synthesis Cu nanoparticles as small as 2 nm, the CuCu direct bonding temperature and time can be reduced further. |
topic |
Cucu direct bonding Cu nanoparticles Molecular dynamics Phase transformation |
url |
http://www.sciencedirect.com/science/article/pii/S0264127520307759 |
work_keys_str_mv |
AT ruiwu atomicinsightsofcunanoparticlesmeltingandsinteringbehaviorincucudirectbonding AT xiuchenzhao atomicinsightsofcunanoparticlesmeltingandsinteringbehaviorincucudirectbonding AT yingxialiu atomicinsightsofcunanoparticlesmeltingandsinteringbehaviorincucudirectbonding |
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1724414489866010624 |