Rotating Disk Reactor With Ferrofluid Seal For Chemical Vapor Deposition
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Accused Products
Abstract
A rotating disk reactor for chemical vapor deposition includes a vacuum chamber and a ferrofluid feedthrough comprising an upper and a lower ferrofluid seal that passes a motor shaft into the vacuum chamber. A motor is coupled to the motor shaft and is positioned in an atmospheric region between the upper and the lower ferrofluid seal. A turntable is positioned in the vacuum chamber and is coupled to the motor shaft so that the motor rotates the turntable at a desired rotation rate. A dielectric support is coupled to the turntable so that the turntable rotates the dielectric support when driven by the shaft. A substrate carrier is positioned on the dielectric support in the vacuum chamber for chemical vapor deposition processing. A heater is positioned proximate to the substrate carrier that controls the temperature of the substrate carrier to a desired temperature for chemical vapor deposition.
29 Citations
60 Claims
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31. A single substrate carrier for chemical vapor deposition, the substrate carrier comprising:
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a) a body; b) a top surface having a recessed area for receiving a substrate; c) a rounded edge having a shape that reduces thermal loss and increases uniformity of process gasses flowing over the substrate; d) a substantially flat surface at the bottom of the rounded edge for positioning on top of a rotating dielectric support; and e) a vertical rim positioned proximate to the rounded edge that reduces wobbling of the substrate carrier when positioned on top of the rotating support. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A multi-substrate carrier for chemical vapor deposition, the multi-substrate carrier comprising:
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a) a body; b) a top surface having a plurality of recessed areas for receiving a plurality of substrates; c) a rounded edge having a shape that reduces thermal loss and increases uniformity of process gasses flowing over the plurality of substrates; d) a substantially flat surface at the bottom of the rounded edge for positioning on top of a rotating dielectric support; e) a vertical rim positioned proximate to the rounded edge that reduces wobbling of the substrate carrier when positioned on top of the rotating dielectric support; and f) an attachment for a shaft that rotates the multi-substrate carrier positioned on the bottom surface of the multi-substrate carrier. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification