High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle Paste
Sintered silver (Ag) die-attach has attracted much attention in power systems with high power density and high operating temperature. In this paper, we proposed a novel surface modification method for Ag nanoparticles with organic amines as a coating agent for enhancing the pressureless sintering pe...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/19/3351 |
| _version_ | 1827653583281061888 |
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| author | Xingwang Shen Junjie Li Shuang Xi |
| author_facet | Xingwang Shen Junjie Li Shuang Xi |
| author_sort | Xingwang Shen |
| collection | DOAJ |
| description | Sintered silver (Ag) die-attach has attracted much attention in power systems with high power density and high operating temperature. In this paper, we proposed a novel surface modification method for Ag nanoparticles with organic amines as a coating agent for enhancing the pressureless sintering performance. This work systematically introduced the Ag nanoparticle modification process, Ag paste preparation, and sintering process and compared the changes in the sintering performance of Ag nanoparticles after modification with four different alkyl chain lengths of amines. The study showed that the sintered films of Ag nanoparticle pastes modified with <i>n</i>-octylamine (NOA) can achieve the lowest resistivity of the sintered film and the highest shear strength of the bonded joints. The resistivity of the sintered Ag film is affected by the grain size and microscopic morphology, and the strength of the bonded joints is also related to the sintering density and the amount of organic residues. The thermal behavior of the Ag particles coated with different amines is measured by thermal analysis. Finally, the mechanism of NOA-modified Ag nanoparticles to improve the sintering performance is proposed. This study can provide effective data and theoretical support for the further promotion and application of nano-Ag pressureless sintering. |
| first_indexed | 2024-03-09T21:21:47Z |
| format | Article |
| id | doaj.art-71ff202581974a0ba843e90b8c8683b8 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T21:21:47Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-71ff202581974a0ba843e90b8c8683b82023-11-23T21:18:40ZengMDPI AGNanomaterials2079-49912022-09-011219335110.3390/nano12193351High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle PasteXingwang Shen0Junjie Li1Shuang Xi2College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, ChinaShenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518100, ChinaCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, ChinaSintered silver (Ag) die-attach has attracted much attention in power systems with high power density and high operating temperature. In this paper, we proposed a novel surface modification method for Ag nanoparticles with organic amines as a coating agent for enhancing the pressureless sintering performance. This work systematically introduced the Ag nanoparticle modification process, Ag paste preparation, and sintering process and compared the changes in the sintering performance of Ag nanoparticles after modification with four different alkyl chain lengths of amines. The study showed that the sintered films of Ag nanoparticle pastes modified with <i>n</i>-octylamine (NOA) can achieve the lowest resistivity of the sintered film and the highest shear strength of the bonded joints. The resistivity of the sintered Ag film is affected by the grain size and microscopic morphology, and the strength of the bonded joints is also related to the sintering density and the amount of organic residues. The thermal behavior of the Ag particles coated with different amines is measured by thermal analysis. Finally, the mechanism of NOA-modified Ag nanoparticles to improve the sintering performance is proposed. This study can provide effective data and theoretical support for the further promotion and application of nano-Ag pressureless sintering.https://www.mdpi.com/2079-4991/12/19/3351Ag nanoparticle pastepressureless sinteringsurface modificationhigh-strength jointdie-attach |
| spellingShingle | Xingwang Shen Junjie Li Shuang Xi High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle Paste Nanomaterials Ag nanoparticle paste pressureless sintering surface modification high-strength joint die-attach |
| title | High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle Paste |
| title_full | High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle Paste |
| title_fullStr | High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle Paste |
| title_full_unstemmed | High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle Paste |
| title_short | High Strength Die-Attach Joint Formation by Pressureless Sintering of Organic Amine Modified Ag Nanoparticle Paste |
| title_sort | high strength die attach joint formation by pressureless sintering of organic amine modified ag nanoparticle paste |
| topic | Ag nanoparticle paste pressureless sintering surface modification high-strength joint die-attach |
| url | https://www.mdpi.com/2079-4991/12/19/3351 |
| work_keys_str_mv | AT xingwangshen highstrengthdieattachjointformationbypressurelesssinteringoforganicaminemodifiedagnanoparticlepaste AT junjieli highstrengthdieattachjointformationbypressurelesssinteringoforganicaminemodifiedagnanoparticlepaste AT shuangxi highstrengthdieattachjointformationbypressurelesssinteringoforganicaminemodifiedagnanoparticlepaste |