Patent ID: 9543181
Date: 2017-01-10
CPC Classifications: H01L

Claim:
1. An electrostatic chuck comprising: a base member having a first top surface; a top member on the base member; an indentation located at an interface of the base member and the top member; an adhesive material interposed between the top member and the base member, wherein the adhesive material joins the top member to the base member; an epoxy in the indentation, the epoxy contacting the base member and the top member, the epoxy comprising a material different from the adhesive material, the epoxy covering the adhesive material such that the adhesive material is not exposed; and a replaceable sidewall shield encircling a periphery of the indentation, the replaceable sidewall shield covering the epoxy; wherein a thickness of the adhesive material is less than a thickness of the epoxy in a direction perpendicular to the first top surface, and wherein the thickness of the epoxy is less than a thickness of the replaceable sidewall shield in the direction perpendicular to the first top surface.