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Träfflista för sökning "WFRF:(Carlberg Björn 1983) "

Sökning: WFRF:(Carlberg Björn 1983)

  • Resultat 1-10 av 29
  • [1]23Nästa
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1.
  • Fu, Yifeng, 1984, et al. (författare)
  • A complete carbon-nanotube-based on-chip cooling solution with very high heat dissipation capacity
  • 2012
  • Ingår i: Nanotechnology. - 1361-6528 .- 0957-4484. ; 23:4
  • Tidskriftsartikel (refereegranskat)abstract
    • Heat dissipation is one of the factors limiting the continuous miniaturization of electronics. In the study presented in this paper, we designed an ultra-thin heat sink using carbon nanotubes (CNTs) as micro cooling fins attached directly onto a chip. A metal-enhanced CNT transfer technique was utilized to improve the interface between the CNTs and the chip surface by minimizing the thermal contact resistance and promoting the mechanical strength of the microfins. In order to optimize the geometrical design of the CNT microfin structure, multi-scale modeling was performed. A molecular dynamics simulation (MDS) was carried out to investigate the interaction between water and CNTs at the nanoscale and a finite element method (FEM) modeling was executed to analyze the fluid field and temperature distribution at the macroscale. Experimental results show that water is much more efficient than air as a cooling medium due to its three orders-of-magnitude higher heat capacity. For a hotspot with a high power density of 5000 W cm(-2), the CNT microfins can cool down its temperature by more than 40 degrees C. The large heat dissipation capacity could make this cooling solution meet the thermal management requirement of the hottest electronic systems up to date.
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2.
  • Zhang, L., et al. (författare)
  • Study on the adhesion strength of new nano-structured polymer-metal composite for thermal interface material (Nano-TIM) under different pressures
  • 2011
  • Ingår i: Proceedings - 12th International Conference on Electronic Packaging Technology and High Density Packaging, ICEPT-HDP 2011, Shanghai, 8-11 August 2011. ; , s. 426-429
  • Konferensbidrag (refereegranskat)abstract
    • With the continual increase in cooling demand for microprocessors, the microelectronics industry has been increasingly focused on the development of thermal solutions. Thermal Interface Material (TIM) plays a key role in reducing the thermal resistance of packaging and the thermal resistance between the electronic device and the external cooling components. Nano-TIM, a new type of thermal interface material, was developed to improve the heat dissipation of electronic devices. This paper describes work undertaken to research the reliability of Nano-TIM. Pull tests were used to investigate the shear strength of samples with Nano-TIM of different thicknesses coalesced between two PCBs with Sn coating made under different pressure. Scanning Electron Microscopy (SEM) analysis techniques were used to determine the morphology of the shear fracture section after pull tests and observe the structure of the cross section of Nano-TIM coalesced between two PCBs with Sn coating.
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3.
  • Carlberg, Björn, 1983, et al. (författare)
  • Direct Photolithographic Patterning of Electrospun Films for Defined Nanofibrillar Microarchitectures
  • 2010
  • Ingår i: Langmuir. - 1520-5827 .- 0743-7463. ; 26:4, s. 2235-2239
  • Tidskriftsartikel (refereegranskat)abstract
    • In this letter, a method of generating spatially defined electrospun microarchitectures by direct photolithographic patterning of electrospun Films is described, A photoinitiator, benzoin methyl ether, is incorporated into a solid thermoplastic electrospun polyurethane matrix selectively photo-cross-linked by standard photolithographic methods. Subsequent development in in organic solvent yields spatially defined electrospun microstructures oil a single substrate. Utilizing a multilayer approach, the method allows for the assembly of complex hierarchical electrospun structures on single substrates using methods analogous to the conventional microfabrication of solid-state devices.
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  • Fu, Yifeng, 1984, et al. (författare)
  • Templated Growth of Covalently Bonded Three-Dimensional Carbon Nanotube Networks Originated from Graphene
  • 2012
  • Ingår i: Advanced Materials. - 0935-9648 .- 1521-4095. ; 24:12, s. 1576-1581
  • Tidskriftsartikel (refereegranskat)abstract
    • A template-assisted method that enables the growth of covalently bonded three-dimensional carbon nanotubes (CNTs) originating from graphene at a large scale is demonstrated. Atomic force microscopy-based mechanical tests show that the covalently bonded CNT structure can effectively distribute external loading throughout the network to improve the mechanical strength of the material.
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  • Resultat 1-10 av 29
  • [1]23Nästa
Typ av publikation
konferensbidrag (17)
tidskriftsartikel (9)
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refereegranskat (23)
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Carlberg, Björn, 198 ... (29)
Liu, Johan, 1960 (27)
Wang, Teng, 1983 (10)
Ye, L. (7)
Fu, Yifeng, 1984 (4)
Zandén, Carl, 1984 (4)
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Hu, Zhili, 1983 (3)
Zhang, Y. (2)
Kuhn, Hans-Georg, 19 ... (2)
Shangguan, Dongkai (2)
Gold, Julie, 1963 (2)
Wallin, Patric, 1985 (2)
Sun, S. (1)
Wang, X. (1)
Zhang, L. (1)
Wang, S (1)
Lu, X. (1)
Zhang, Y. H. (1)
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Lindahl, Niklas, 198 ... (1)
Nannmark, Ulf, 1958 (1)
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Nyberg, Lena, 1979 (1)
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Lai, Zonghe, 1948 (1)
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Lindvall, Niclas, 19 ... (1)
Norberg, Jonas, 1983 (1)
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Wang, Nan, 1988 (1)
Song, Yuxin, 1981 (1)
Chen, Si, 1981 (1)
Luo, Xin, 1983 (1)
Zhang, Yan, 1976 (1)
Mu, Wei, 1985 (1)
Nabiollahi, N. (1)
Ye, L. L. (1)
Guan, Wanbing (1)
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Chalmers tekniska högskola (29)
Göteborgs universitet (4)
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