PRECURSOR MATERIAL DELIVERY SYSTEM WITH STAGING VOLUME FOR ATOMIC LAYER DEPOSITION
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Nov 28, 2006
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Sep 11, 2002
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Abstract
A precursor delivery system includes a flow path from a precursor container to a reaction space of a thin film deposition system, such as an atomic layer deposition (ALD) reactor. A staging volume is preferably established between the precursor container and the reaction space for receiving at least one dose of the precursor material from the precursor container, and from which pulses are released toward the reaction space. A pulse control device is preferably interposed between the staging volume and the reaction space. A sensor may sense a physical condition in the staging volume for providing feedback to a controller of the precursor delivery system, for performance monitoring and control.
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