Building the Model of Blue LED Flip Chip
碩士 === 國立中興大學 === 精密工程學系所 === 103 === LED is one of the promising light source which has the characteristics of low power consumption, small volume and no mercury pollution. Two well-known methods to increase luminous efficiency are LED-side roughness and design geometric patterned sapphire structur...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2015
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| Online Access: | http://ndltd.ncl.edu.tw/handle/52630568647296632993 |
| Summary: | 碩士 === 國立中興大學 === 精密工程學系所 === 103 === LED is one of the promising light source which has the characteristics of low power consumption, small volume and no mercury pollution. Two well-known methods to increase luminous efficiency are LED-side roughness and design geometric patterned sapphire structure. But no LED Chip model has been proposed so far.
Motivated by this point, this work employees optical simulation software called OptisWorks and optics principle to design the model of blue LED chip. With the verification of the simulation and experiment, we succeed in building the model of blue flip LED chip. Through the optical microscope and simulation we know the intensity distribution in the surface regions of LED is not very uniform. Through the side view of LED it is observed that the existence varies substalutially at different angles. The luminous existence is more concentrated at the bottom.The model of flip chip is investigated and built in the work, which improves the understanding of the top and side surfaces emission characteristics. This is helpful to future package and applications for blue LED flip chip.
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