Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Forming nonplanar surface
Reexamination Certificate
2004-06-07
2009-11-17
Chea, Thorl (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Forming nonplanar surface
C430S313000, C430S320000, C430S323000, C451S038000
Reexamination Certificate
active
07618769
ABSTRACT:
A method of fabricating a process chamber component having a textured surface includes applying a resist layer on an underlying surface of the component. A predetermined pattern of apertures is formed in the resist layer that exposes the underlying surface of the component. The underlying surface is etched through the apertures in the resist layer to form a textured surface having raised features with top corners. The resist layer is removed, and a treatment step is performed to form top corners that are rounded. In another method, the textured surface is formed by providing a patterned mask having apertures above the surface of the component. A material is sprayed through the apertures in the patterned mask and onto the surface to form a textured surface with raised features having the material.
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Brueckner Karl
Wang Hong
West Brian
Applied Materials Inc.
Chea Thorl
Janah & Associates P.C.
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