• DocumentCode
    2730700
  • Title

    High power UV-LED-clusters on ceramic substrates

  • Author

    Schneider, Marc ; Herbold, Christian ; Messerschmidt, Kay ; Trampert, Klaus ; Brandner, Jürgen J.

  • Author_Institution
    Karlsruhe Inst. of Technol., Karlsruhe, Germany
  • fYear
    2010
  • fDate
    1-4 June 2010
  • Firstpage
    679
  • Lastpage
    685
  • Abstract
    We present a high power density UV-LED module for a wavelength of 395 nm with an optical power density of 13.1 W/cm2. The module consists of 98 densely packed LED chips adhesively bonded to an Al2O3-ceramic board. Thermal simulations and measurements as well as optical measurements were conducted. The module was cooled by a forced air heat sink for the characterization experiments. A surface micro cooler with water as a coolant is proposed to improve thermal performance of the module. To drive the LED module, we developed an efficient current source powered directly from AC mains supply with integrated power factor correction using a single switching component.
  • Keywords
    Bonding; Ceramics; Coolants; Heat sinks; Light emitting diodes; Optical surface waves; Power supplies; Semiconductor device measurement; Thermal conductivity; Wavelength measurement;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electronic Components and Technology Conference (ECTC), 2010 Proceedings 60th
  • Conference_Location
    Las Vegas, NV, USA
  • ISSN
    0569-5503
  • Print_ISBN
    978-1-4244-6410-4
  • Electronic_ISBN
    0569-5503
  • Type

    conf

  • DOI
    10.1109/ECTC.2010.5490793
  • Filename
    5490793
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2730700