Novel bondpad report process for III-V semiconductor devices using full HSQ properties

Autor: J. Chazelas, Marc François, Didier Decoster, Pascal Tilmant, Malek Zegaoui, N. Choueib, Christiane Legrand
Přispěvatelé: Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: Microelectronic Engineering
Microelectronic Engineering, Elsevier, 2009, 86, pp.68-71. ⟨10.1016/j.mee.2008.09.043⟩
Microelectronic Engineering, 2009, 86 (1), pp.68-71. ⟨10.1016/j.mee.2008.09.043⟩
ISSN: 0167-9317
1873-5568
DOI: 10.1016/j.mee.2008.09.043⟩
Popis: This paper reports on an easy and quick planarization and passivation technique of III-V compound semiconductor compatible with nanoscale devices. Vertical etching requires good sidewalls passivation to reduce drastically the leakage current and to obtain a good planarization of the devices for metal connection. This novel technique offers the capability to planarize all the different compounds in the entire wafer independently of the height of the structure to be connected. This method uses the HSQ properties (fluidity, solidification to silica film by using O"2 plasma treatment, negative tone e-beam lithography resist, low-k dielectric, etc.) to planarize and to passivate all the devices at once. We applied this quick and easy method to InP digital optical switches. We demonstrated photonic switches with high yield (>90%), high breakdown voltage (>30V), low ohmic contact resistance ([email protected]) and a low leakage current (21pA/@mm^2 for 5V reversed bias).
Databáze: OpenAIRE