Simulating light conversion in mid-power LEDs

A. Alexeev; W. Cassarly; Volker D. Hildenbrand; O. Tapaninen; A. Sitomaniemi; A. Wondergem

doi:10.1109/EuroSimE.2016.7463300

Simulating light conversion in mid-power LEDs

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

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 2016
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	7
ISBN (Print)	978-1-5090-2106-2
DOIs	https://doi.org/10.1109/EuroSimE.2016.7463300
Publication status	Published - 29 Apr 2016
Externally published	Yes
Event	17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE2016) - Montpellier, France Duration: 18 Apr 2016 → 20 Apr 2016 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7459073

Conference

Conference	17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE2016)
Abbreviated title	EuroSimE2016
Country/Territory	France
City	Montpellier
Period	18/04/16 → 20/04/16
Internet address	http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7459073

Access to Document

10.1109/EuroSimE.2016.7463300

http://www.mendeley.com/research/simulating-light-conversion-midpower-leds

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 Article 7463300 Institute of Electrical and Electronics 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.",

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note = "17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE2016), EuroSimE2016 ; 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 2016., 7463300, Institute of Electrical and Electronics Engineers, Piscataway, 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE2016), 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, Volker D. et al.
2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2016. Piscataway: Institute of Electrical and Electronics Engineers, 2016. 7463300.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Simulating light conversion in mid-power LEDs

AU - Alexeev, A.

AU - Cassarly, W.

AU - Hildenbrand, Volker 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.

U2 - 10.1109/EuroSimE.2016.7463300

DO - 10.1109/EuroSimE.2016.7463300

M3 - Conference contribution

SN - 978-1-5090-2106-2

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

PB - Institute of Electrical and Electronics Engineers

CY - Piscataway

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Y2 - 18 April 2016 through 20 April 2016

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. Piscataway: Institute of Electrical and Electronics Engineers. 2016. 7463300 doi: 10.1109/EuroSimE.2016.7463300

Simulating light conversion in mid-power LEDs

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