Rapid Inverse Design of GaN-on-GaN Diode with Guard Ring Termination for BV and (VFQ)-1Co-Optimization
Publication Date
1-1-2023
Document Type
Conference Proceeding
Publication Title
Proceedings of the International Symposium on Power Semiconductor Devices and ICs
Volume
2023-May
DOI
10.1109/ISPSD57135.2023.10147511
First Page
143
Last Page
146
Abstract
GaN-on-GaN vertical diode is a promising device for next-generation power electronics. Its breakdown voltage (BV) is limited by edge termination designs such as guard rings. The design space of guard rings is huge and it is difficult to optimize manually. In this paper, we propose an effective inverse design strategy to co-optimize BV and (VFQ)-1, where BV, VF, and Q are the breakdown voltage, forward voltage, and reserve capacitive charge of the diode, respectively. Using rapid Technology Computer-Aided-Design (TCAD) simulations, neural network (NN), and Pareto front generation, a GaN-on-GaN diode is optimized within 24 hours. We can obtain structures with 200V higher BV at medium (VFQ)-1 or find a nearly ideal BV structure with 25% higher BV2/Ron compared to the best randomly generated TCAD data.
Funding Number
ECCS-2134374
Funding Sponsor
National Science Foundation
Keywords
Breakdown Voltage, Gallium Nitride (GaN), Machine Learning, Pareto Front, Technology Computer-Aided Design (TCAD)
Department
Electrical Engineering
Recommended Citation
Nathan Yee, Albert Lu, Yifan Wang, Matthew Porter, Yuhao Zhang, and Hiu Yung Wong. "Rapid Inverse Design of GaN-on-GaN Diode with Guard Ring Termination for BV and (VFQ)-1Co-Optimization" Proceedings of the International Symposium on Power Semiconductor Devices and ICs (2023): 143-146. https://doi.org/10.1109/ISPSD57135.2023.10147511
