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STAGE DEVICE AND PROCESSING APPARATUS

  • US 20200131625A1
  • Filed: 10/22/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/25/2018
  • Status: Active Grant
First Claim
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1. A stage device comprising:

  • a stage configured to hold a target substrate in a vacuum chamber;

    a chiller having a cold head maintained at an extremely low temperature;

    a cold heat transfer body fixed in contact with the cold head and disposed below a bottom surface of the stage with a gap between the stage and the cold heat transfer body;

    a heat insulating structure unit having a vacuum insulated structure and configured to surround at least the cold head and a connection portion between the cold head and the cold heat transfer body;

    cooling fluid supplied to the gap to transfer cold heat of the cold heat transfer body to the stage; and

    a stage support rotated by a driving mechanism and configured to rotatably support the stage.

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