期刊
JOURNAL OF COMPUTATIONAL ELECTRONICS
卷 -, 期 -, 页码 -出版社
SPRINGER
DOI: 10.1007/s10825-023-02121-w
关键词
GaN; HEMT; Self-heating; Thermal resistance; Channel temperature
This paper presents the modeling of self-heating in GaN-based devices and proposes four different methods to estimate self-heating, thermal resistance, and channel temperature. The focus is on reducing the number of measurements needed to determine self-heating and/or channel temperature for various ambient temperatures. Additionally, a summary of channel temperature for different GaN HEMTs found in-literatures is provided and all findings are compared using a fair difference threshold.
The modeling of self-heating in GaN-based devices is presented in this paper. A setup for DC I-V and short pulse I-V was used to characterize the device. This paper used four different methods to estimate self-heating, thermal resistance, and channel temperature in a GaN-based high electron mobility transistor (HEMT) fabricated on a SiC substrate. The procedures are basic and straightforward, making them suitable for determining self-heating. We concentrated on reducing the number of measurements needed to determine self-heating and/or channel temperature for any applied ambient temperatures. In addition, a summary of channel temperature for different GaN HEMTs found in-literatures is also presented. Finally, all of the findings are compared using a fair difference threshold. This work reflects an essential and comprehensive understanding of device technology.
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