Deposition of silicon nitride by plasma-enchanced chemical vapor

Coating processes – Direct application of electrical – magnetic – wave – or... – Plasma

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427294, 4272552, 427585, H05H 124

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055080677

ABSTRACT:
A silicon nitride or silicon oxynitride film is deposited by plasma enhanced chemical vapor deposition from a precursor gas mixture of a silane, a nitrogen-containing organosilane and a nitrogen-containing gas at low temperatures of 300.degree.-400.degree. C. and pressure of 1-10 Torr. The silicon nitride films have low carbon content and low hydrogen content, low wet etch rates and they form conformal films over stepped topography.

REFERENCES:
patent: 4395438 (1983-07-01), Chiang
patent: 4699825 (1987-10-01), Sakai et al.
patent: 4943450 (1990-07-01), Sarin
patent: 5043224 (1991-08-01), Jaccodine et al.
European Search Report for EP 94115055.9, Dec. 1994.

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