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Bipolar electrostatic chuck and method for using the same

  • US 10,460,969 B2
  • Filed: 03/17/2017
  • Issued: 10/29/2019
  • Est. Priority Date: 08/22/2016
  • Status: Active Grant
First Claim
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1. An electrostatic chuck comprising:

  • a chuck body; and

    a plurality of independently replaceable electrostatic chuck assemblies mounted in an array across the chuck body to define a substrate support surface suitable for supporting a large area substrate, at least a first electrostatic chuck assembly of the plurality of electrostatic chuck assemblies operable independent of an operation of a second electrostatic chuck assembly of the plurality of electrostatic chuck assemblies, wherein the first electrostatic chuck assembly is laterally spaced apart from the second electrostatic chuck assembly to form a gap therebetween, and wherein the chuck body comprises;

    a port aligned with and configured to flow gas into the gap defined between the first and second electrostatic chuck assemblies.

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