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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Echeverría, Marco J. Pedro, O. Quintero Ibitayo, Dimeji Boteler, Lauren |
| Copyright Year | 2018 |
| Abstract | In power electronic, ceramic substrates are used owing to their high thermal conductivity and dielectric strength. These substrates cannot withstand high voltages in the range of 20kV because thickness limitations inherit from the direct bond copper manufacturing method. This manufacturing process uses high temperature in order to bond the material layers. This negatively affects the material’s reliability due to the differing materials thermal expansion coefficients and the resulting residual stress. All this results in hindering the ceramic substrate in obtaining a higher dielectric strength. In contrast, cold gas spray has the potential to provide higher reliability due to its bonding mechanism, which relies on plastic deformation of solid particles at very high strain rates during impact to create a mechanical bond, forming a thick deposit. However, cold gas spray on ceramics has not been widely studied due to their brittleness and their inability to form a metallic bond. This work is aimed at providing an effective processing parameter map of the cold gas spray process to achieve a thick copper deposit on aluminum nitride on the basis of the comparison of experimental results with a numerical model and finite element simulation formulated in Mathematica and ABAQUS, respectively. |
| Sponsorship | Electronic and Photonic Packaging Division |
| File Format | |
| ISBN | 9780791851920 |
| DOI | 10.1115/IPACK2018-8279 |
| Conference Proceedings | ASME 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems |
| Language | English |
| Publisher Date | 2018-08-27 |
| Publisher Place | San Francisco, California, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Deformation Computer simulation Aluminum Sprays Ceramics High temperature Brittleness Stress Thermal expansion Simulation Electronic packaging Particulate matter Thermal conductivity Manufacturing Finite element analysis Copper Reliability Bonding |
| Content Type | Text |
| Resource Type | Article |
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