Accession Number:

AD1096865

Title:

Implementation of a 900 V Switching Circuit for High Breakdown Voltage Beta-Ga2O3 Schottky Diodes

Descriptive Note:

Journal Article - Open Access

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC WASHINGTON United States

Personal Author(s):

• Chen ,Yen-Ting
• Yang ,Jiancheng
• Ren ,Fan
• Chang ,Chin-Wei
• Lin ,Jenshan
• Pearton ,S. J.
• Tadjer ,Marko J.
• Kuramata ,Akito
• Liao ,Yu-Te

Report Date:

2019-05-22

Pagination or Media Count:

7.0

Abstract:

This paper presents a switching circuit for high breakdown-voltage Ga2O3 vertical Schottky rectifiers. Field-plated edge-terminated FPET vertical Schottky diodes were fabricated on a 20-mu m thick Si-doped n-type Ga2O3 drift layer which was grown on the 650-mu m thick beta-Ga2O3 substrate via halide vapor phase epitaxy HVPE. The measured reverse recovery time of the proposed Ga2O3 Schottky diode was 81 ns when switched to a reverse bias voltage of -900 V. The implementation of a switching circuit with the novel Ga2O3 diode is the first demonstrated at such a high switching voltage. This paper also provides insights for the practical implementation of the Ga2O3 vertical Schottky rectifiers from device fabrication to circuit design.

Descriptors:

• switching circuits
• schottky diodes
• high voltage
• power electronics
• rectifiers

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE