Title :
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
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;
Conference_Titel :
Thermal Investigations of ICs and Systems (THERMINIC), 2014 20th International Workshop on
Conference_Location :
London
DOI :
10.1109/THERMINIC.2014.6972504
