Quantified insights into LED variability

Robin Bornoff; Thomas Mérelle; Josephine Sari; Alessandro Di Bucchianico; Gabor Farkas

doi:10.1109/THERMINIC.2018.8593315

Quantified insights into LED variability

Robin Bornoff, Thomas Mérelle, Josephine Sari, Alessandro Di Bucchianico, Gabor Farkas

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

18 Citations (Scopus)

Abstract

There is a variation in the characteristics of an LED partly due to variation in the manufacturing process and the sourcing of materials from differing vendors. From a thermal perspective these variations result in differing thermal characteristics such as R _thJC (the thermal resistance between chip junction and case) and Z _th (the thermal impedance curve). This study seeks to quantify the measured variation of a number of LED part samples and provide insight into the root cause of those variations. Such information would provide additional confidence to a lighting engineer when selecting LEDs, when modelling their thermal behaviour and thus modelling their thermally dependent optical performance.

Original language	English
Title of host publication	THERMINIC 2018 - 24th International Workshop on Thermal Investigations of ICs and Systems, Proceedings
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	6
ISBN (Electronic)	9781538667590
DOIs	https://doi.org/10.1109/THERMINIC.2018.8593315
Publication status	Published - 27 Dec 2018
Event	24th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2018 - Stockholm, Sweden Duration: 26 Sept 2018 → 28 Sept 2018 https://therminic2018.eu/

Conference

Conference	24th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2018
Abbreviated title	Therminic2018
Country/Territory	Sweden
City	Stockholm
Period	26/09/18 → 28/09/18
Internet address	https://therminic2018.eu/

Funding

The contribution of the European Union for supporting this work in the context of the H2020 ECSEL Joint Under-taking programme (2016-2019) within the frames of the Delphi4LED project (grant agreement 692465) is acknowledged. Cofinancing of the Delphi4LED project by the R&D funding organizations of the governments of the countries participating in this experiment through their national grant agreements is also acknowledged.

Keywords

LED
Structure Function
Variation

Access to Document

10.1109/THERMINIC.2018.8593315

Cite this

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title = "Quantified insights into LED variability",

abstract = " There is a variation in the characteristics of an LED partly due to variation in the manufacturing process and the sourcing of materials from differing vendors. From a thermal perspective these variations result in differing thermal characteristics such as R thJC (the thermal resistance between chip junction and case) and Z th (the thermal impedance curve). This study seeks to quantify the measured variation of a number of LED part samples and provide insight into the root cause of those variations. Such information would provide additional confidence to a lighting engineer when selecting LEDs, when modelling their thermal behaviour and thus modelling their thermally dependent optical performance. ",

keywords = "LED, Structure Function, Variation",

author = "Robin Bornoff and Thomas M{\'e}relle and Josephine Sari and {Di Bucchianico}, Alessandro and Gabor Farkas",

year = "2018",

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day = "27",

doi = "10.1109/THERMINIC.2018.8593315",

language = "English",

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note = "24th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2018, Therminic2018 ; Conference date: 26-09-2018 Through 28-09-2018",

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Bornoff, R, Mérelle, T, Sari, J, Di Bucchianico, A & Farkas, G 2018, Quantified insights into LED variability. in THERMINIC 2018 - 24th International Workshop on Thermal Investigations of ICs and Systems, Proceedings., 8593315, Institute of Electrical and Electronics Engineers, Piscataway, 24th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2018, Stockholm, Sweden, 26/09/18. https://doi.org/10.1109/THERMINIC.2018.8593315

Quantified insights into LED variability. / Bornoff, Robin; Mérelle, Thomas; Sari, Josephine et al.
THERMINIC 2018 - 24th International Workshop on Thermal Investigations of ICs and Systems, Proceedings. Piscataway: Institute of Electrical and Electronics Engineers, 2018. 8593315.

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

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AU - Di Bucchianico, Alessandro

AU - Farkas, Gabor

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Y1 - 2018/12/27

N2 - There is a variation in the characteristics of an LED partly due to variation in the manufacturing process and the sourcing of materials from differing vendors. From a thermal perspective these variations result in differing thermal characteristics such as R thJC (the thermal resistance between chip junction and case) and Z th (the thermal impedance curve). This study seeks to quantify the measured variation of a number of LED part samples and provide insight into the root cause of those variations. Such information would provide additional confidence to a lighting engineer when selecting LEDs, when modelling their thermal behaviour and thus modelling their thermally dependent optical performance.

AB - There is a variation in the characteristics of an LED partly due to variation in the manufacturing process and the sourcing of materials from differing vendors. From a thermal perspective these variations result in differing thermal characteristics such as R thJC (the thermal resistance between chip junction and case) and Z th (the thermal impedance curve). This study seeks to quantify the measured variation of a number of LED part samples and provide insight into the root cause of those variations. Such information would provide additional confidence to a lighting engineer when selecting LEDs, when modelling their thermal behaviour and thus modelling their thermally dependent optical performance.

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KW - Structure Function

KW - Variation

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DO - 10.1109/THERMINIC.2018.8593315

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BT - THERMINIC 2018 - 24th International Workshop on Thermal Investigations of ICs and Systems, Proceedings

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ER -

Quantified insights into LED variability

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