I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter
Paper
The Adsorption of PH3 on Si(100) and its Effect on the Coadsorption of SiH4
Abstract
PH3is found to chemisorb on Si(100) and the saturation coverage is strongly temperature dependent. Apparently the desorption of the hydrogen at temperatures above 400 °C can open up more Si sites for PH3chemisorption. Both PH3 and phosphorus adsorbed on the Si surface can effectively block the coadsorption of silane molecules. The data is consistent with the observed rapid decrease in Si deposition rate during in situ doping with PH3in a SiH4reactor. © 1984, American Vacuum Society. All rights reserved.
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