1983
DOI: 10.1002/crat.2170181218
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Doping process control in silicon epitaxy (I). System identification

Abstract: The transition behaviour of the phosphorus incorporation in silicon epitaxial layers grown in a CVD reactor has been investigated, considering the reactor as a linear control system with u = lg pOpR, ( t ) as the input and y = lg N ( t ) as the output. The response of system to both upward and downward step inputs has been studied experimentally, using SiH4 and PH, sources. The dopant system of a horizontal silicon epitaxial reactor has been identified and a mathematical model relating to the transient behavio… Show more

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