Simulating light conversion in mid-power LEDs

A. Alexeev, W. Cassarly, V. D. Hildenbrand, O. Tapaninen, A. Sitomaniemi, A. Wondergem

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    2 Citations (Scopus)

    Abstract

    A good understanding of the optical and thermal properties of mid-power LEDs requires an accurate simulation of the light conversion process in the phosphor layer and a good description of the major materials properties. A ray-tracing model for the light conversion process is developed in LightTools® and the output is used as input for the thermal model in ANSYS®. The thermal resistances of the main resistors in the junction to case heat flow path are measured and implemented in the thermal model. The results of the optical and thermal simulations using key parameters are compared with the measured values. Depending on the effort used to calibrate the model, deviations of less than ten percent can be achieved. This is typically within the error margin of the experiments. The main source of error is most likely missing information on the precise optical die properties.

    Original languageEnglish
    Title of host publication2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016
    PublisherIEEE Institute of Electrical and Electronic Engineers
    ISBN (Electronic)9781509021062
    DOIs
    Publication statusPublished - 29 Apr 2016
    MoE publication typeA4 Article in a conference publication
    Event17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016 - Montpellier, France
    Duration: 18 Apr 201620 Apr 2016

    Conference

    Conference17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016
    CountryFrance
    CityMontpellier
    Period18/04/1620/04/16

    Fingerprint

    Thermal Model
    Light emitting diodes
    Thermal Resistance
    Phosphor
    Thermal Properties
    Ray Tracing
    Heat Flow
    ANSYS
    Material Properties
    Margin
    Optical Properties
    Percent
    Simulation
    Die
    Deviation
    Likely
    Path
    Output
    Ray tracing
    Heat resistance

    Cite this

    Alexeev, A., Cassarly, W., Hildenbrand, V. D., Tapaninen, O., Sitomaniemi, A., & Wondergem, A. (2016). Simulating light conversion in mid-power LEDs. In 2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016 [7463300] IEEE Institute of Electrical and Electronic Engineers . https://doi.org/10.1109/EuroSimE.2016.7463300
    Alexeev, A. ; Cassarly, W. ; Hildenbrand, V. D. ; Tapaninen, O. ; Sitomaniemi, A. ; Wondergem, A. / Simulating light conversion in mid-power LEDs. 2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016. IEEE Institute of Electrical and Electronic Engineers , 2016.
    @inproceedings{0293d0797807496082f3e9e95813dce5,
    title = "Simulating light conversion in mid-power LEDs",
    abstract = "A good understanding of the optical and thermal properties of mid-power LEDs requires an accurate simulation of the light conversion process in the phosphor layer and a good description of the major materials properties. A ray-tracing model for the light conversion process is developed in LightTools{\circledR} and the output is used as input for the thermal model in ANSYS{\circledR}. The thermal resistances of the main resistors in the junction to case heat flow path are measured and implemented in the thermal model. The results of the optical and thermal simulations using key parameters are compared with the measured values. Depending on the effort used to calibrate the model, deviations of less than ten percent can be achieved. This is typically within the error margin of the experiments. The main source of error is most likely missing information on the precise optical die properties.",
    author = "A. Alexeev and W. Cassarly and Hildenbrand, {V. D.} and O. Tapaninen and A. Sitomaniemi and A. Wondergem",
    year = "2016",
    month = "4",
    day = "29",
    doi = "10.1109/EuroSimE.2016.7463300",
    language = "English",
    booktitle = "2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016",
    publisher = "IEEE Institute of Electrical and Electronic Engineers",
    address = "United States",

    }

    Alexeev, A, Cassarly, W, Hildenbrand, VD, Tapaninen, O, Sitomaniemi, A & Wondergem, A 2016, Simulating light conversion in mid-power LEDs. in 2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016., 7463300, IEEE Institute of Electrical and Electronic Engineers , 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016, Montpellier, France, 18/04/16. https://doi.org/10.1109/EuroSimE.2016.7463300

    Simulating light conversion in mid-power LEDs. / Alexeev, A.; Cassarly, W.; Hildenbrand, V. D.; Tapaninen, O.; Sitomaniemi, A.; Wondergem, A.

    2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016. IEEE Institute of Electrical and Electronic Engineers , 2016. 7463300.

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    TY - GEN

    T1 - Simulating light conversion in mid-power LEDs

    AU - Alexeev, A.

    AU - Cassarly, W.

    AU - Hildenbrand, V. D.

    AU - Tapaninen, O.

    AU - Sitomaniemi, A.

    AU - Wondergem, A.

    PY - 2016/4/29

    Y1 - 2016/4/29

    N2 - A good understanding of the optical and thermal properties of mid-power LEDs requires an accurate simulation of the light conversion process in the phosphor layer and a good description of the major materials properties. A ray-tracing model for the light conversion process is developed in LightTools® and the output is used as input for the thermal model in ANSYS®. The thermal resistances of the main resistors in the junction to case heat flow path are measured and implemented in the thermal model. The results of the optical and thermal simulations using key parameters are compared with the measured values. Depending on the effort used to calibrate the model, deviations of less than ten percent can be achieved. This is typically within the error margin of the experiments. The main source of error is most likely missing information on the precise optical die properties.

    AB - A good understanding of the optical and thermal properties of mid-power LEDs requires an accurate simulation of the light conversion process in the phosphor layer and a good description of the major materials properties. A ray-tracing model for the light conversion process is developed in LightTools® and the output is used as input for the thermal model in ANSYS®. The thermal resistances of the main resistors in the junction to case heat flow path are measured and implemented in the thermal model. The results of the optical and thermal simulations using key parameters are compared with the measured values. Depending on the effort used to calibrate the model, deviations of less than ten percent can be achieved. This is typically within the error margin of the experiments. The main source of error is most likely missing information on the precise optical die properties.

    UR - http://www.scopus.com/inward/record.url?scp=84974603378&partnerID=8YFLogxK

    U2 - 10.1109/EuroSimE.2016.7463300

    DO - 10.1109/EuroSimE.2016.7463300

    M3 - Conference article in proceedings

    AN - SCOPUS:84974603378

    BT - 2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016

    PB - IEEE Institute of Electrical and Electronic Engineers

    ER -

    Alexeev A, Cassarly W, Hildenbrand VD, Tapaninen O, Sitomaniemi A, Wondergem A. Simulating light conversion in mid-power LEDs. In 2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016. IEEE Institute of Electrical and Electronic Engineers . 2016. 7463300 https://doi.org/10.1109/EuroSimE.2016.7463300