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Mechanical property...
Mechanical property and reliability of bimodal nano-silver paste with Ag-coated SiC particles
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- Zhang, Q. (author)
- Shanghai University
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- Zehri, Abdelhafid, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Liu, Jiawen (author)
- Shanghai University
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- Ke, Wei (author)
- Shanghai University
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- Huang, S. (author)
- Shanghai University
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- Gutierrez Latorre, Martí, 1993 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wang, Nan, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lu, Xiuzhen (author)
- Shanghai University
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- Zhou, Cheng (author)
- Aerospace Science and Technology Corporation
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- Xia, Weijuan (author)
- Aerospace Science and Technology Corporation
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- Wu, Yanpei (author)
- Aerospace Science and Technology Corporation
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- Ye, L. (author)
- SHT Smart High-Tech AB
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- Liu, Johan, 1960 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2019
- 2019
- English.
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In: Soldering and Surface Mount Technology. - 1758-6836 .- 0954-0911. ; 31:4, s. 193-202
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https://research.cha...
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https://doi.org/10.1...
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Abstract
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- © 2019, Emerald Publishing Limited. Purpose: This study aims to develop a bimodal nano-silver paste with improved mechanical property and reliability. Silicon carbide (SiC) particles coated with Ag were introduced in nano-silver paste to improve bonding strength between SiC and Ag particles and enhance high-temperature stability of bimodal nano-silver paste. The effect of sintering parameters such as sintering temperature, sintering time and the proportion of SiC particles on mechanical property and reliability of sintered bimodal nano-silver structure were investigated. Design/methodology/approach: Sandwich structures consist of dummy chips and copper substrates with nickel and silver coating bonded by nano-silver paste were designed for shear testing. Shear strength testing was conducted to study the influence of SiC particles proportions on the mechanical property of sintered nano-silver joints. The reliability of the bimodal nano-silver paste was evaluated experimentally by means of shear test for samples subjected to thermal aging test at 150°C and humidity and temperature testing at 85°C and 85 per cent RH, respectively. Findings: Shear strength was enhanced obviously with the increase of sintering temperature and sintering time. The maximum shear strength was achieved for nano-silver paste sintered at 260°C for 10 min. There was a negative correlation between the proportion of SiC particles and shear strength. After thermal aging testing and humidity and temperature testing for 240 h, the shear strength decreased a little. High-temperature stability and high-hydrothermal stability were improved by the addition of SiC particles. Originality/value: Submicron-scale SiC particles coated with Ag were used as alternative materials to replace part of nano-silver particles to prepare bimodal nano-silver paste due to its high thermal conductivity and excellent mechanical property.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Keyword
- Shear strength
- Silver-coated SiC particles
- Bimodal nano-silver paste
- Reliability
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Zhang, Q.
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Zehri, Abdelhafi ...
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Liu, Jiawen
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Ke, Wei
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Huang, S.
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Gutierrez Latorr ...
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show more...
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Wang, Nan, 1988
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Lu, Xiuzhen
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Zhou, Cheng
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Xia, Weijuan
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Wu, Yanpei
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Ye, L.
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Liu, Johan, 1960
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Ceramics
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Manufacturing Su ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Other Materials ...
- Articles in the publication
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Soldering and Su ...
- By the university
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Chalmers University of Technology