Patent ID: 11881385
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A method of protecting a process kit, comprising:
forming a frame that is attachable to at least a portion of a process kit for a preclean chamber;
attaching the frame to an inner surface of the process kit; and
spot welding a foil liner composed of a metallic material to an inner surface of the frame at specific points, the foil liner having an amount of flexibility per GPa of approximately 2.5 to approximately 4.5, wherein the amount of flexibility is determined by f=L/(t×E), where f is the amount of flexibility, L is a distance of separation of the specific points, t is a thickness of the foil liner, and E is the modulus of elasticity of the metallic material.