1998
DOI: 10.1016/s1369-8001(98)00015-8
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Metal contamination monitoring and gettering

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Cited by 21 publications
(21 citation statements)
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References 29 publications
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“…In p-type silicon, the injection level is defined as δn/p 0 , where δn is the minority carrier excess and p 0 is the equilibrium majority carrier concentration. In previous works (12) it was shown that data of lifetime vs. injection level can be used for the identification of contaminants. Indeed, according to the Shockley-Read-Hall theory, the dependence of recombination lifetime τ on the injection level is uniquely determined by the properties (energy levels and capture cross sections) of the dominant recombination centers.…”
Section: Sample Preparationmentioning
confidence: 99%
“…In p-type silicon, the injection level is defined as δn/p 0 , where δn is the minority carrier excess and p 0 is the equilibrium majority carrier concentration. In previous works (12) it was shown that data of lifetime vs. injection level can be used for the identification of contaminants. Indeed, according to the Shockley-Read-Hall theory, the dependence of recombination lifetime τ on the injection level is uniquely determined by the properties (energy levels and capture cross sections) of the dominant recombination centers.…”
Section: Sample Preparationmentioning
confidence: 99%
“…[75] Elektrisch inaktive Sauerstoffausscheidungen mit höherer Sauerstoffkonzentration als die thermischen Donoren (Abbildung 15) können vorteilhaft sein, weil sie Verunreinigungen durch schnell diffundierende Übergangsmetallatome wie Eisen, Kupfer und Nickel unschädlich machen, die bei einigen Mikrochip-Anwendungen noch in äußerst niedrigen Konzentrationen (10 11 Atome pro cm 3 ) stören. [76] Das entspricht für Silicium mit 5 10 22 Siliciumatomen pro cm 3 einem Eisengehalt von 2 10 À10 Atom-% oder 2 ppta (1 ppt = Abbildung 16. Anordnungen von fünf durch Sauerstoff erzeugten Defekten in CZ-Silicium (Ergebnisse von DFT-Modellrechnungen).…”
Section: +unclassified
“…Several techniques have been used to measure lifetime. [3][4][5][6] The technique used for the experiments in this letter is ELYMAT™. Carrier lifetime measurements are sensitive to contamination at the anticipated levels, usually in the parts per trillion range.…”
Section: ͑Received 3 October 2001; Accepted For Publication 3 April 2mentioning
confidence: 99%