Thermal Management of Lasers and LEDs Using Diamond

Kemp, Alan J.; Hopkins, James F.; Hastie, Jennifer E.; Calvez, S.; Zhang, Yanfeng; Gu, Erdan; Dawson, Martin D.; Burns, D.

doi:10.1002/9783527648603.ch11

Cited by 4 publications

(2 citation statements)

References 85 publications

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“…Other reports on the use of diamond as a heat sink followed, a complete list can be found in [15]. Free standing diamond has also been used as a sub-mount for lasers [16], [17] as well as a circuit board integrated with water-cooling channels [18]. Gallium nitride (GaN) high electron mobility transistors (HEMTs) also benefit from the integration with diamond films [19]- [23].…”

Section: Introductionmentioning

confidence: 99%

Impact of Die Carrier on Reliability of Power LEDs

Kyatam

Alves

Maslovski

et al. 2021

IEEE J. Electron Devices Soc.

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High power light emitting diodes (LEDs) suffer from heating effects that have a detrimental impact on the devices characteristics. The use of LED carriers with high thermal conductivity promotes the extraction of heat away from the LED junction. Different materials can be used for this purpose, such as alumina, aluminium nitride, and silicon. Diamond has also been gaining momentum for demanding heat management applications. In order to evaluate the impact of the carrier material on the reliability of the devices, the junction temperature of Cree® white XLamp® XB-D LEDs was obtained with Ansys for various carriers and different LED current levels. The impact of the junction temperature on the LED's lifetime, emission intensity, footprint, and wavelength stability was then evaluated for each carrier based on the datasheet of the devices. The results provide additional knowledge regarding the impact of the carrier on the performance of the LED.

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Section: Introductionmentioning

confidence: 99%

Impact of Die Carrier on Reliability of Power LEDs

Kyatam

Alves

Maslovski

et al. 2021

IEEE J. Electron Devices Soc.

View full text Add to dashboard Cite

show abstract

“…Other reports on the use of diamond as a heat sink followed, a complete list can be found in [15]. Free standing diamond has also been used as a sub-mount for lasers [16], [17] as well as a circuit board integrated with watercooling channels [18]. Gallium nitride (GaN) high electron mobility transistors (HEMTs) also benefit from the integration with diamond films [19]- [23].…”

Section: Introductionmentioning

confidence: 99%

Impact of die carrier on reliability of power LEDs

Kyatam¹,

Alves²,

Maslovski³

et al. 2021

Preprint

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High power light emitting diodes (LEDs) suffer from heating effects that have a detrimental impact on the devices characteristics. The use LED carriers with high thermal conductivity promotes the extraction of heat away from the LED junction. Different materials can be used for this purpose, such as alumina, aluminium nitride, and silicon. Diamond has also been gaining momentum for demanding heat management applications. In order to evaluate the impact of the different carriers on the reliability of the devices, the junction temperature of Cree® white Xamp® XB-D LEDs was obtained with Ansys for various carrier at different LED current levels. The impact of the junction temperature on the LED's lifetime, emission intensity, footprint and wavelength stability was then evaluated for each carrier based on the datasheet of the devices. The results provide additional knowledge regarding the impact of the carrier on the performance of the LED.

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Diamond Films

Schultrich¹

2018

Tetrahedrally Bonded Amorphous Carbon Films I

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Thermal Management of Lasers and LEDs Using Diamond

Cited by 4 publications

References 85 publications

Impact of Die Carrier on Reliability of Power LEDs

Impact of Die Carrier on Reliability of Power LEDs

Impact of die carrier on reliability of power LEDs

Diamond Films

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