Desorption mass spectrometric control of alloy composition durin

Coating processes – Measuring – testing – or indicating

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427446, 427452, 427456, 427566, 4272551, 4272552, B05D 112

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055431704

ABSTRACT:
System and method for controlling alloy composition during molecular beam epitaxy growth of group III-V ternaries at high substrate temperature or under any conditions which give rise to significant desorption rates is described which incorporates desorption mass spectrometry in a real time feedback loop for continuous monitoring and control of layer composition by control of incident group V (e.g., arsenic) flux.

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