Removal Rate of Phosphorus from Molten Silicon

An electron beam melting technique under high vacuum is known to be effective for the removal of phosphorus from silicon, however, the rate of removal is not yet adequate. In order to improve the removal rate, the effects of four experimental factors on this rate were investigated. Raising temperatu...

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Bibliographic Details
Main Authors: Kemmotsu Takayuki, Nagai Takashi, Maeda Masafumi
Format: Article
Language:English
Published: De Gruyter 2011-04-01
Series:High Temperature Materials and Processes
Subjects:
Online Access:https://doi.org/10.1515/htmp.2011.002
Description
Summary:An electron beam melting technique under high vacuum is known to be effective for the removal of phosphorus from silicon, however, the rate of removal is not yet adequate. In order to improve the removal rate, the effects of four experimental factors on this rate were investigated. Raising temperature of the surface of molten silicon provide effective, neither residual gas pressure in a vacuum chamber nor stirring molten silicon improve the rate, while supplying reactant gas to molten silicon had some effect.
ISSN:0334-6455
2191-0324