Effect of doping of the intermediate layer on the RF performances of GaN-based p-i-n diodes
In this article, we study the effect of the doping level in the intermediate layer of a pseudo-vertical GaN-based p-i-n diode. By decreasing the doping level, from 1.1 × 1016 to 1.6 × 1014 cm−3, we show that the OFF-state capacitance can be reduced by a factor 2.2, without affecting the ON-state resistance too much, which is increased by only 16%. The main consequence is an increase in the cutoff frequency by a factor 1.8, from 137 ± 5 to 250 ± 16 GHz. The DC characteristics of the diode are preserved since no significant variation of the turn on voltage has been found and no breakdown occurs for up to −200 V biasing.
Authors
- Jérôme Billoué (ORCID: https://orcid.org/0000-0002-0034-1302)
- Y. Cordier (ORCID: https://orcid.org/0000-0003-3720-9409)
- Julien Ladroue
- Arnaud Yvon
- Daniel Alquier (ORCID: https://orcid.org/0000-0003-1345-8195)
- Kevin Nadaud (ORCID: https://orcid.org/0000-0002-2969-1453)
- Zihao Lyu
- Quentin Paoli
- Eric Frayssinet
- Pedro Fernandes Paes Pinto Rocha
Institutions
- Université de Tours (FR)
- STMicroelectronics (Switzerland) (CH)
- Sorbonne Université (FR)
- Groupe de Recherche en Droit, Économie, Gestion (FR)
- Services déconcentrés d'appui à la recherche Val de Loire (FR)
Publication Details
- Journal
- APL Electronic Devices
- Published
- 2026-04-13
- DOI
- https://doi.org/10.1063/5.0319825
- Primary Topic
- GaN-based semiconductor devices and materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agence Nationale de la Recherche