The optimal design of the thermal spreading on high power LEDs

Jui Ching Hsieh, David T.W. Lin, Chin Hsiang Cheng, Siwapong Kingkaew, Sheng Chung Chen

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


New energy and energy saving are the two basic energy issues. This study proposes an innovative optimal method to design LEDs with high thermal spreading holder. The optimization uses the FEM combined with the simplified conjugated gradient method (SCGM). The minimal temperature of the MCPCB backside of the LEDs is obtained throughout this design. The simulations have been proofed by the experiment of IR and thermal couple measurement. The optimal temperature decreases at about 4 °C compared with the original temperature without any active cooling device. This design can prolong the LEDs' life to benefit the energy saving obviously. In addition, this design combined with the active cooling device will achieve better heat dissipation on cooling of the electronic component.

Original languageEnglish
Pages (from-to)904-909
Number of pages6
JournalMicroelectronics Journal
Issue number7
Publication statusPublished - 2014 Jul

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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