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SCIENTIA SINICA Informationis, Volume 48 , Issue 6 : 734-742(2018) https://doi.org/10.1360/N112018-00056

A transient thermal analysis of microscale inorganic light-emitting diodes

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  • ReceivedMar 22, 2018
  • AcceptedMay 9, 2018
  • PublishedJun 11, 2018

Abstract


Funded by

国家重点基础研究发展计划(2015CB351900)

国家自然科学基金(11502009)

国家自然科学基金(11772030)

机械结构强度与振动国家重点实验室开放基金(SV2018-KF-13)


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  • Figure 1

    (Color online) A schematic of (a) the $\mu~$-ILED structure; (b) the axisymmetric analytical model

  • Figure 2

    The time variation of the temperature increase of $\mu~$-ILED (FEA: finite element analysis)

  • Figure 3

    (Color online) The distribution of the steady-state temperature increase at theencapsulation/substrate interface. (a) Analytic; (b) FEA

  • Figure 4

    The influence of the in-plane dimension ratio $R_{0}$/$R~$ on thesteady-state temperature increase of $\mu~$-ILED

  • Table 1   Geometric and material properties of each layer in finite elementanalysis
    Su8 $\mu$-ILED Hydrogel
    Thickness ($\mu~$m) 110 5 300
    Radius (mm) 5 0.5 5
    Density (kg/m$^{3})$ 1190 2329 1112
    Conductivity (W/m/K) 0.2 160 0.6
    Specific heat (J/kg/K) 1200 700 2375