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Controlled Oxidation of III-V Semiconductors for Photonic Devices

Stéphane Calvez 1 Gael Lafleur 1 Oleksandr Stepanenko 1 Alexandre Arnoult 2 Antoine Monmayrant 1 Henri Camon 1 Guilhem Almuneau 1
1 LAAS-PHOTO - Équipe Photonique
LAAS - Laboratoire d'analyse et d'architecture des systèmes
2 LAAS-TEAM - Service Techniques et Équipements Appliqués à la Microélectronique
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : The oxidation of III-V semiconductors is a crucial technological process in the mass-volume manufacturing of (singlemode) Vertical-Cavity Surface-Emitting Lasers or in the fabrication of more-recently-demonstrated integrated photonic devices. To facilitate the deployment of VCSELs in their up-rising markets but also to sustain the above-mentioned emerging uses, the shape and size of the optical/electrical apertures resulting from the selective lateral oxidation of buried layers of aluminum-containing III-V semiconductors needs to be controlled with an ever-increasing accuracy and reliability.In this paper, we will review the recent experimental investigations and model developments we have carried out to analyse and describe in detail this oxidation process. In particular, we will show that its degree of anisotropy depends on the oxidation process conditions and that the detrimental shape distortion induced by this anisotropy may be mitigated by a careful design of the etched mesas used to enable the oxidation of the buried layers.
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https://hal.laas.fr/hal-02296303
Contributor : Stéphane Calvez <>
Submitted on : Wednesday, September 25, 2019 - 10:07:08 AM
Last modification on : Tuesday, November 17, 2020 - 10:01:34 AM

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Stéphane Calvez, Gael Lafleur, Oleksandr Stepanenko, Alexandre Arnoult, Antoine Monmayrant, et al.. Controlled Oxidation of III-V Semiconductors for Photonic Devices. 21st International Conference on Transparent Optical Networks (ICTON 2019), Jul 2019, Angers, France. pp.1-4, ⟨10.1109/ICTON.2019.8840290⟩. ⟨hal-02296303⟩

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