High-temperature Analysis of Optical Coupling Using AlGaAs/GaAs LEDs for High-density Integrated Power Modules

Authors

Syam Madhusoodhanan, University of Arkansas, FayettevilleFollow
Abbas Sabbar, University of Arkansas, FayettevilleFollow
Huong Tran, University of Arkansas, FayettevilleFollow
Pengyu Lai, University of Arkansas, FayettevilleFollow
David Gonzalez, University of Arkansas, Fayetteville
H. Alan Mantooth, University of Arkansas, FayettevilleFollow
Shui-Qing Yu, University of Arkansas, FayettevilleFollow
Zhong Chen, University of Arkansas, Fayetteville

Document Type

Article

Publication Date

2-2022

Keywords

Low-temperature co-fired ceramic; optocoupler; AlGaAs/GaAs double heterostructure; electroluminescence; spectral response; high-temperature testing

Abstract

A low-temperature co-fired ceramic (LTCC)-based optocoupler design is demonstrated as a possible solution for optical isolation in high-density integrated power modules. The design and fabrication of LTCC based package are discussed. Commercially available aluminum gallium arsenide/gallium arsenide (AlGaAs/GaAs) double heterostructure is used both as emitter and photodetector in the proposed optocoupler. A detailed study on the electroluminescence and spectral response of the AlGaAs/GaAs structure is conducted at elevated temperatures. The material figure of merit parameter, D*, is calculated in the temperature range 77-800 K. The fabricated optocoupler is tested at elevated temperatures, and the results are presented.

Citation

Madhusoodhanan, S., Sabbar, A., Tran, H., Lai, P., Gonzalez, D., Mantooth, H. A., Yu, S., & Chen, Z. (2022). High-temperature Analysis of Optical Coupling Using AlGaAs/GaAs LEDs for High-density Integrated Power Modules. Scientific Reports, 12, 3168. https://doi.org/10.1038/s41598-022-06858-5

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.