Wafer-scale Fabrication of Vertical GaN p-n Diodes with Graded JTE Structures Using Multiple-zone Boron Implantation
Wafer-scale Fabrication of Vertical GaN p-n Diodes with Graded JTE Structures Using Multiple-zone Boron Implantation
复制标题
使用多区硼注入晶圆级制造具有渐变 JTE 结构的垂直 GaN p-n 二极管
DOI:
10.1109/ispsd49238.2022.9813654
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Harada Shinsuke
中科院分区:
文献类型:
--
作者:
Miura Yoshinao;Hirai Hirohisa;Nakajima Akira;Harada Shinsuke
In this study, a novel graded junction termination extension (JTE) structure is proposed for high voltage vertical GaN power devices. A multiple-zone boron implantation layout used to form a graded acceptor concentration profile along the JTE enables us to obtain p-n diodes with high avalanche immunity over 1200 V. In wafer- scale fabrication of the p-n diodes on a 4-inch free-standing GaN substrate, good reverse characteristics are observed across the wafer, showing breakdown voltage distribution of as much as 1450 V with circular symmetry. We demonstrate double-pulse switching waveforms at 400 V for the p-n diodes and show reverse recovery properties that reflect a short carrier lifetime specific to GaN. The proposed JTE technique has high potential for wafer-scale fabrication of robust and highly efficient vertical GaN devices.
DOI:
10.23919/ispsd50666.2021.9452219
发表时间:
2022
期刊:
Proc. of International Symposium on Power Semiconductor Devices and ICs
影响因子:
--
作者:
Miura Yoshinao;Hirai Hirohisa;Nakajima Akira;Harada Shinsuke
通讯作者:
Harada Shinsuke
影响因子:
4.9
作者:
Wei Lin;Maojun Wang;R. Yin;Jin Wei;C. Wen;B. Xie;Y. Hao;B. Shen
通讯作者:
B. Shen
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Y. Jingu;H. Kawarada;et. al.
通讯作者:
et. al.