Published October 19, 2022 | Version v1
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Etching of Nitrides-NbN Heterostructures

  • 1. III-V Lab

Description

Niobium Nitride (NbN) is metallic at room temperature. NbN / III-N heterostructures are of interest for
new devices applications such as the Metal Base Transistor (MBT). Niobium Nitride etching in fluorine plasma is documented by Reactive Ion Etching (RIE). In this document we present the etching of a III-Nitride NbN heterostructure with fluorine
chemistry Inductively Coupled Plasma (ICP).

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Additional details

Funding

Agence Nationale de la Recherche
Niobium - Niobium nitride / III-N heterojunctions grown by molecular beam epitaxy: First demonstration of a metal-based transistor ANR-21-CE08-0037

References

  • [Delage] S. Delage, WO2019020737 – Metal-based transistor comprising materials comprising at least one group III element and one group V element, international filing date: 26.07.2018
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  • [Sreennidhi] T. Sreenidhi, K. Baskar, A. DasGupta, N. DasGupta ; Reactive ion etching of GaN in SF6 + Ar and SF6 + N2 plasma ; Semicond. Sci. Technol. 23 (2008) 125019 (7pp) ; doi:10.1088/0268- 1242/23/12/125019
  • [EMPy] https://wiki.nanotech.ucsb.edu/wiki/Laser_Etch_Monitor_Simulation_in_Python
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