| 1. |
- Huang, Shirong, et al.
(författare)
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The Effects of Graphene-Based Films as Heat Spreaders for Thermal Management in Electronic Packaging
- 2016
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Ingår i: 2016 17th International Conference on Electronic Packaging Technology, ICEPT 2016. - 9781509013968 ; , s. Art no 7583272; Pages 889-892
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Konferensbidrag (refereegranskat)abstract
- Graphene-based films (GBF) were fabricated using a chemical conversion process including graphene oxide (GO) preparation by use of Hummer’s method, graphene oxide reduction using L-ascorbic acid (LAA), and finally film formation by vacuum filtration. GBF is considered as a candidate material for thermal management, i.e. for removing heat from hotspots in power electronic packaging, due to its high thermal conductivity. In this work, the GBF heat spreading performance in 3D TSV packaging was analysed using finite element methods (FEM) implemented in the COMSOL software. Both size effects and the influence of the thermal conductivity of the GBF heat spreader on the thermal performance of the 3D TSV package were evaluated. Furthermore, the size effects of the thermal conductive adhesive (TCA) underfill between the chip and the printed circuit board (PCB) were analysed. The results obtained are critical for proper design of graphene-based lateral heat spreaders in high power electronic packaging.
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| 2. |
- Yuan, G., et al.
(författare)
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A brief overview of atomic layer deposition and etching in the semiconductor processing
- 2016
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Ingår i: 2016 17th International Conference on Electronic Packaging Technology, ICEPT 2016. - 9781509013968 ; , s. 1365-1368
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Konferensbidrag (refereegranskat)abstract
- Atomic layer deposition (ALD) and atomic layer etching (ALE) are two important techniques in the semiconductor processing, which focus ultra-Thin film deposition and etching, respectively. Both of them have the self-limiting surface behavior, and could realize the atomic-scale fidelity in the deposition and etching processes. Unlike traditional chemical vapor deposition (CVD) and physical vapor deposition (PVD), ALD has good step coverage, atomic-scale thickness controllability, and composition uniformity at low growth temperature. Compared with traditional continuous-wave plasma etching, ALE has smooth surface, excellent depth uniformity and atomic-scale thickness controllability. In this review, their fundamental and applications have been discussed.
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| 3. |
- Zhang, Yan, et al.
(författare)
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Experimental investigation of paraffin wax with graphene enhancement as thermal management materials for batteries
- 2016
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Ingår i: 2016 17th International Conference on Electronic Packaging Technology, ICEPT 2016. - 9781509013968 ; , s. 1401-1405
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Konferensbidrag (refereegranskat)abstract
- Battery packs have been widely used as the power source in many fields, such as pure or hybrid electric vehicles, because of the advantages of high energy density, long cycle life, low self-discharge rate, no memory effect and so on. The heat dissipation is a key issue in the reliability of the batteries, especially for high power applications. Paraffin waxes are commonly used phase change materials in the thermal management of Li-ion battery packs. In order to improve the thermal performance, graphene powders are utilized as additives to increase the thermal conductivity of paraffin waxes. A series of graphene-enhanced paraffin wax samples are prepared, and then the prepared samples are applied to power sources for experimental evaluation. The results show an improved heat dissipation of paraffin waxes with graphene enhancement. Temperature rise in the heat source can be decreased, and the effect is more obvious for higher power case.
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