TITLE

New method to determine the carbon concentration in silicon

AUTHOR(S)
Weber, J.; Singh, M.
PUB. DATE
December 1986
SOURCE
Applied Physics Letters;12/8/1986, Vol. 49 Issue 23, p1617
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Silicon samples subjected to a CF4 reactive ion etch exhibit the G-line luminescence known from photoluminescence studies of irradiation damage in Si. We investigate the mechanism of low-energy carbon implantation by CF4 plasma and find a linear dependence of the G-line luminescence intensity on the substitutional carbon concentration in the samples. By a standardized etching and photoluminescence procedure, we expect to determine carbon concentrations two orders of magnitude smaller than the ASTM infrared absorption method.
ACCESSION #
9821583

 

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