Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition Additions

Rapid developments in wide-bandgap semiconductors have led to the demand for interconnection materials that can withstand harsh conditions. In this study, novel Ag composite pastes were developed with the assistance of metal organic decomposition (MOD) to significantly reduce the sintering temperatu...

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Main Authors: Zixuan Xu, Xun Liu, Junjie Li, Rong Sun, Li Liu
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/6/2340
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author Zixuan Xu
Xun Liu
Junjie Li
Rong Sun
Li Liu
author_facet Zixuan Xu
Xun Liu
Junjie Li
Rong Sun
Li Liu
author_sort Zixuan Xu
collection DOAJ
description Rapid developments in wide-bandgap semiconductors have led to the demand for interconnection materials that can withstand harsh conditions. In this study, novel Ag composite pastes were developed with the assistance of metal organic decomposition (MOD) to significantly reduce the sintering temperature of commercial Ag pastes. The effects of the decomposition characteristics of different MODs on the microstructure, morphology, and the shear strength of the Ag-sintered joints were systematically investigated. Additionally, the low-temperature sintering mechanisms of the MOD-assisted Ag composite pastes were studied and proposed. Among all the MODs studied, the one consisting of propylamine complexed with silver oxalate demonstrated the best performance due to its ability to form Ag nanoclusters with the smallest size (~25 nm) and highest purity (~99.07 wt.%). Notably, the bonding temperature of the MOD-modified Ag pastes decreased from 250 °C to 175 °C, while the shear strength increased from 20 MPa to 40.6 MPa when compared to the commercial Ag pastes.
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spelling doaj.art-e299505cbc9348cca28a84613337892b2023-11-17T12:20:54ZengMDPI AGMaterials1996-19442023-03-01166234010.3390/ma16062340Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition AdditionsZixuan Xu0Xun Liu1Junjie Li2Rong Sun3Li Liu4School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518100, ChinaShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518100, ChinaShenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518100, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaRapid developments in wide-bandgap semiconductors have led to the demand for interconnection materials that can withstand harsh conditions. In this study, novel Ag composite pastes were developed with the assistance of metal organic decomposition (MOD) to significantly reduce the sintering temperature of commercial Ag pastes. The effects of the decomposition characteristics of different MODs on the microstructure, morphology, and the shear strength of the Ag-sintered joints were systematically investigated. Additionally, the low-temperature sintering mechanisms of the MOD-assisted Ag composite pastes were studied and proposed. Among all the MODs studied, the one consisting of propylamine complexed with silver oxalate demonstrated the best performance due to its ability to form Ag nanoclusters with the smallest size (~25 nm) and highest purity (~99.07 wt.%). Notably, the bonding temperature of the MOD-modified Ag pastes decreased from 250 °C to 175 °C, while the shear strength increased from 20 MPa to 40.6 MPa when compared to the commercial Ag pastes.https://www.mdpi.com/1996-1944/16/6/2340MODAg composite pasteslow-temperature sinteringshear strength
spellingShingle Zixuan Xu
Xun Liu
Junjie Li
Rong Sun
Li Liu
Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition Additions
Materials
MOD
Ag composite pastes
low-temperature sintering
shear strength
title Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition Additions
title_full Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition Additions
title_fullStr Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition Additions
title_full_unstemmed Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition Additions
title_short Low-Temperature Sintering of Ag Composite Pastes with Different Metal Organic Decomposition Additions
title_sort low temperature sintering of ag composite pastes with different metal organic decomposition additions
topic MOD
Ag composite pastes
low-temperature sintering
shear strength
url https://www.mdpi.com/1996-1944/16/6/2340
work_keys_str_mv AT zixuanxu lowtemperaturesinteringofagcompositepasteswithdifferentmetalorganicdecompositionadditions
AT xunliu lowtemperaturesinteringofagcompositepasteswithdifferentmetalorganicdecompositionadditions
AT junjieli lowtemperaturesinteringofagcompositepasteswithdifferentmetalorganicdecompositionadditions
AT rongsun lowtemperaturesinteringofagcompositepasteswithdifferentmetalorganicdecompositionadditions
AT liliu lowtemperaturesinteringofagcompositepasteswithdifferentmetalorganicdecompositionadditions