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Substrate bonding system and method of modifying the same

  • US 9,299,594 B2
  • Filed: 07/27/2010
  • Issued: 03/29/2016
  • Est. Priority Date: 07/27/2010
  • Status: Active Grant
First Claim
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1. A substrate bonding system, comprising:

  • an upper assembly, wherein the upper assembly includesan upper body with upper heating elements; and

    an upper plate; and

    a lower assembly, wherein the lower assembly includesa lower plate facing the upper plate, wherein the lower plate supports a substrate during a bonding process;

    a lower body with lower heating elements;

    a support structure for the lower body; and

    at least one shim placed between the support structure for the lower body and the lower plate, the at least one shim positioned for improving a planarity of a surface of the substrate after the substrate is bonded to a carrier,wherein the at least one shim is not in direct contact with the substrate,wherein the lower plate has an outermost surface configured to be in contact with the substrate or the carrier and having a center portion and an edge portion, andwherein the center portion of the outermost surface of the lower plate is higher than the edge portion of the outermost surface of the lower plate during a period the lower heating elements are not operating.

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