2009 Fiscal Year Final Research Report
Clarification of Coalescence Mechanism of Metal Fillers in Self-Organization Assembly Process
| Project/Area Number |
19201027
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Microdevices/Nanodevices
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| Research Institution | Osaka University |
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Principal Investigator |
FUJIMOTO Kozo Osaka University, 工学研究科, 教授 (70135664)
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| Co-Investigator(Kenkyū-buntansha) |
FUKUMOTO Sinji 大阪大学, 工学研究科, 准教授 (60275310)
YASUDA Kiyokazu 大阪大学, 工学研究科, 講師 (00210253)
MATSUSHIMA Michiya 大阪大学, 工学研究科, 助教 (90403154)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 高密度実装 / 自己組織化 / 金属フィラー / 溶融凝集 / 粘性流体 / フリップチップ実装 |
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| Research Abstract |
In this study, we investigated the fundamental principles of the flow, cohesion, and coalescence of the molten filler metals in the resin in the newly proposed self-organization assembly process. In particular, we found that the surface energy change due to degradation of the surface oxide film is the driving force of the molten filler metal flow. We also found that degradation of oxide film on the filler metals and viscosity change of the resin are major influence for the assembly property of the self-organization assembly process. In addition, guidelines of material design or process design for terminal connection on the thousands of electrodes on IC chip has been given.
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