Patent ID: 7618769
Filing Date: 2009-11-17
Classification: C23C,G03F,H01J

Abstract:
1. A method of fabricating a process chamber component having a textured surface, the method comprising: (a) providing a process chamber component; (b) applying a resist layer on a surface of the process chamber component; (c) forming a predetermined pattern of apertures in the resist layer that expose portions of the surface of the process chamber component therethrough; (d) etching the surface of the process chamber component through the apertures in the resist layer, thereby forming a textured surface on the process chamber component, the textured surface having raised features comprising top corners; (e) removing the resist layer; and (f) propelling grit particles at the top corners of the raised features with a pressurized gas to erode material from the top corners, thereby forming top corners that are rounded.