Simulating light conversion in mid-power LEDs

Anton Alexeev; W. Cassarly; Volker D. Hildenbrand; Olli Tapaninen; Aila Sitomaniemi; A. Wondergem

doi:10.1109/EuroSimE.2016.7463300

Simulating light conversion in mid-power LEDs

Anton Alexeev, W. Cassarly, Volker D. Hildenbrand^*, Olli Tapaninen, Aila Sitomaniemi, A. Wondergem

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

3 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 language	English
Title of host publication	2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)
Publisher	IEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)	978-1-5090-2106-2
ISBN (Print)	978-1-5090-2120-8
DOIs	https://doi.org/10.1109/EuroSimE.2016.7463300
Publication status	Published - 29 Apr 2016
MoE publication type	A4 Article in a conference publication
Event	17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016 - Montpellier, France Duration: 18 Apr 2016 → 20 Apr 2016

Conference

Conference	17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016
Country/Territory	France
City	Montpellier
Period	18/04/16 → 20/04/16

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10.1109/EuroSimE.2016.7463300

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) Article 7463300 IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/EuroSimE.2016.7463300

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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{\textregistered} and the output is used as input for the thermal model in ANSYS{\textregistered}. 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 = "Anton Alexeev and W. Cassarly and Hildenbrand, {Volker D.} and Olli Tapaninen and Aila Sitomaniemi and A. Wondergem",

year = "2016",

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day = "29",

doi = "10.1109/EuroSimE.2016.7463300",

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publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

note = "17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016 ; Conference date: 18-04-2016 Through 20-04-2016",

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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)., 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, Anton; Cassarly, W.; Hildenbrand, Volker D. et al.
2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). IEEE Institute of Electrical and Electronic Engineers, 2016. 7463300.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Alexeev, Anton

AU - Cassarly, W.

AU - Hildenbrand, Volker D.

AU - Tapaninen, Olli

AU - Sitomaniemi, Aila

AU - Wondergem, A.

PY - 2016/4/29

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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.

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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). IEEE Institute of Electrical and Electronic Engineers. 2016. 7463300 doi: 10.1109/EuroSimE.2016.7463300

Simulating light conversion in mid-power LEDs

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