Improving Heat Dissipation in GaN-on-Si Transistors
Author Information
Author(s): Hao Lu, Liu Zhihong, Du Hanghai, Zhao Shenglei, Wang Han, Zhang Jincheng, Hao Yue, Aguas Hugo
Primary Institution: School of Microelectronics, Xidian University, Xi’an, China
Hypothesis
Can a GaN-on-insulator structure enhance the thermal performance of GaN-on-Si high-electron-mobility transistors?
Conclusion
The proposed GNOI-on-Si structure significantly improves the heat dissipation ability of GaN-on-Si HEMTs.
Supporting Evidence
- The GNOI structure removes low-thermal-conductivity transition layers.
- Using high-thermal-conductivity dielectrics like SiC, AlN, or diamond improves heat dissipation.
- The GNOI-on-Si HEMT shows lower thermal resistance compared to conventional structures.
Takeaway
This study shows that changing the structure of certain transistors can help them get rid of heat better, making them work more efficiently.
Methodology
Electrothermal simulation was used to analyze the thermal performance of GNOI-on-Si HEMTs with different insulator dielectrics.
Limitations
The study primarily focuses on simulation results, which may not fully capture real-world performance.
Digital Object Identifier (DOI)
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