Low Pressure Chemical Vapor Deposition of Silicon Carbide from Diethylsikne

Document Type

Article

Publication Date

1-1-1993

Abstract

This study investigates the use of diethylsilane as a single precursor to synthesize by low pressure chemical vapor deposition of amorphous SiC films. At 700°C, the deposition rate was observed to vary linearly with flow rate and pressure while the stoichiometry of the deposits showed little deviation from a composition of SiO 6Coi4. In the 600 to 700°C range, the growth rate was observed to follow an Arrhenius behavior with an activation energy of 41 kcal/mol. The elemental composition became progressively richer in carbon as the deposition temperature increased. The films were found to remain amorphous until the deposition temperature of 850°C where the onset of crystallinity to a p-SiC phase occurred. While remaining tensile for all deposition conditions, the hardness and Young’s modulus of the amorphous films increased with higher temperatures reaching values of 33 and 250 GPa near the stoichiometric composition. © 1993, The Electrochemical Society, Inc. All rights reserved.

Identifier

84975425509 (Scopus)

Publication Title

Journal of the Electrochemical Society

External Full Text Location

https://doi.org/10.1149/1.2056172

e-ISSN

19457111

ISSN

00134651

First Page

851

Last Page

854

Issue

3

Volume

140

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