Abstract

By directly flip-chip soldering three mid-power light-emitting diode (LED) chips with periodic micro-via-holes on ceramic substrates, 3  dB modulation bandwidths of 49.9 MHz, 58.8 MHz, and 25 MHz are obtained at the driving current of 170 mA. To the best of our knowledge, these are the reported highest 3  dB bandwidth values for flip-chip power-type LEDs (FC-LEDs) at the low-bias current levels. Moreover, good radiant powers are also achieved: 180.2 mW, 168.8 mW, and 233.8 mW at 150 mA, respectively. With a gold wire-free feature, the fabricated FC-LEDs could offer an opportunity to miniaturize the package volume of a LED module for illumination and free-space high-speed VLC dual-usage applications.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Improving modulation bandwidth of c-plane GaN-based light-emitting diodes by an ultra-thin quantum wells design

Kamran Rajabi, Jiaxing Wang, Jie Jin, Yuchen Xing, Lai Wang, Yanjun Han, Changzheng Sun, Zhibiao Hao, Yi Luo, Keyuan Qian, Chien-Ju Chen, and Meng-Chyi Wu
Opt. Express 26(19) 24985-24991 (2018)

Numerical simulation and experimental investigation of GaN-based flip-chip LEDs and top-emitting LEDs

Xingtong Liu, Shengjun Zhou, Yilin Gao, Hongpo Hu, Yingce Liu, Chengqun Gui, and Sheng Liu
Appl. Opt. 56(34) 9502-9509 (2017)

Improving the –3  dB bandwidth of micro-size LEDs through p-electrode patterns for visible light communication

Lijun Tan, Kai Wang, Zijing Xie, Ming Zhong, Linsheng Lu, Hong Wang, and Ruohe Yao
Appl. Opt. 59(23) 7004-7011 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription