Acta Photonica Sinica, Volume. 47, Issue 8, 823002(2018)
Effect of Alcohol on Air Tightness of LED Silicone Encapsulation
In order to explore the impact of Light Emitting Diode (LED) silicone package on the LED failure, the failure case of LED packaging glue is chosed to analyze the failure. Fourier transform infrared spectroscopy and gas chromatography mass spectrometry were used to analyze the composition of the failed samples. Finally, the failure mechanism of the samples was obtained based on the analysis results. The analysis results show that, the chemical incompatibility of the material in the LED lamp bead package sealing process leads to the failure of the sealing glue, and the LED lamp beads have a poor air tightness, which affects the light, electricity, heat, mechanical structure, and material properties. LED reliability is reduced; therefore, in the manufacturing process of LED, it is also necessary to avoid material incompatibility and increase the reliability of the LED.
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WEN Shang-sheng, PENG Xing, MA Bing-xu, SONG Jia-liang, FU Min, FANG Fang, HU Jie-pin, KANG Li-juan, KONG Ling-bao. Effect of Alcohol on Air Tightness of LED Silicone Encapsulation[J]. Acta Photonica Sinica, 2018, 47(8): 823002
Received: Jan. 21, 2018
Accepted: --
Published Online: Sep. 16, 2018
The Author Email: Shang-sheng WEN (shshwen@scut.edu.cn)