DTIC ADA109305: Electrical Compensation in InP Produced by Backgrou... | |
by Defense Technical Information Center | |
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A steady-state liquid phase epitaxial growth system is | |
being used to study the factors that influence the | |
nucleation, growth and purity of InP. Humidity (>30% | |
relative) has been found to be a major contaminant that | |
leads to erratic growth morphologies and poor electrical | |
properties. With the growth system and substrate | |
preparations in a low humidity (<20% relative) room the | |
reproducibility of epitaxial growths has been improved. | |
The discoloration of the bone white pyrolytic boron | |
nitride growth cell has helped to identify several | |
sources of contamination that oxidize the In-melt and | |
lead to premature nucleation. The nucleation and growth | |
of epitaxial InP now appears to be limited by phosphorus | |
transport instabilities in the P-saturated In-melt. A | |
thermochemical analysis of phosphorus equilibria with In | |
and InP may provide an insight into liquid solid | |
stability conditions. The results are in excellent | |
agreement with the stability of the In-P liquidus curve | |
and InP substrates under PH3-H2 mixtures. The analysis | |
appears to indicate that the partial pressure of P4 | |
controls the nucleation of InP and the stability of the | |
In-P liquidus curve. At temperatures below 700 deg C the | |
partial pressure of P2 is greater than that for P4 and | |
appears to stabilize the InP substrate degradation. | |
(Author) | |
Date Published: 2017-12-31 03:08:48 | |
Identifier: DTIC_ADA109305 | |
Item Size: 19726504 | |
Language: english | |
Media Type: texts | |
# Topics | |
DTIC Archive; Mattes, B. L.; MICHIGAN... | |
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dticarchive | |
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@chris85 | |
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