CHEN Jia, LI Xin, KONG Ya-fei etc. High Temperature Reliability of High-power LED Module Using Die Attach Material of Nano-silver Paste[J]. Chinese Journal of Luminescence, 2016,37(9): 1159-1165
CHEN Jia, LI Xin, KONG Ya-fei etc. High Temperature Reliability of High-power LED Module Using Die Attach Material of Nano-silver Paste[J]. Chinese Journal of Luminescence, 2016,37(9): 1159-1165 DOI: 10.3788/fgxb20163709.1159.
High Temperature Reliability of High-power LED Module Using Die Attach Material of Nano-silver Paste
A general procedure for accelerated degradation testing (ADT) was presented to predict the lifetime of three kinds of LED modules. The die attach materials of LED modules were nano-silver paste
Sn3Ag0.5Cu (Sn-based alloys)
silver epoxy
respectively. The ambient temperature and forward current were controlled
and the light output at several time points was measured. The degradation mechanism of LEDs modules was analyzed. The lifetimes of LED modules under the condition of different die attach materials were predicted. The test results show that the nano-silver paste is a very promising die-attach material for the aging of multi-chip high power LED modules.
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