Multi-channel and real-time monitoring system for junction temperature of light-emitting diodes

Author

Byungjin Ma ; Jemin Kim ; SungSoon Choi ; Kwanhoon Lee

Author_Institution

Korea Electron. Technol. Inst., Seongnam, South Korea

fYear

2014

fDate

24-26 Sept. 2014

Firstpage

1

Lastpage

3

Abstract

In order to enhance the accuracy of lifetime estimation in the LED packages, we developed a multi-channel real-time monitoring system for LED characteristics. This characterizing system includes a precise junction-temperature measurement of the LED packages. A 2, 500-hour lifetime test had been carried out and the junction temperatures of the LED packages had been monitored. Our proposing method could consider a deviation of the thermal property in the LED packages and we could filter out thermally-abnormal samples in a lifetime-estimation procedure.

Keywords

light emitting diodes; real-time systems; semiconductor device packaging; temperature measurement; LED packages; junction temperature; light emitting diode packages; multichannel monitoring system; multichannel real-time monitoring system; precise junction-temperature measurement; thermal property; time 2500 hour; Integrated optics; Junctions; Lifetime estimation; Light emitting diodes; Optical sensors; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal Investigations of ICs and Systems (THERMINIC), 2014 20th International Workshop on

Conference_Location

London

Type

conf

DOI

10.1109/THERMINIC.2014.6972504

Filename

6972504