Patent ID: 6358793
Filing Date: 2002-03-19
Classification: G03F,H01L

Abstract:
A method of forming a semiconductor container structure, comprising:forming an insulating layer having a surface and overlying a substrate; forming a container hole in the insulating layer and having a closed bottom, an open top and sidewalls extending between the closed bottom and open top; forming a container layer at least on the surface of the insulating layer and the sidewalls and closed bottom of the container hole; forming a resist layer overlying the container layer and filling the container hole, wherein the resist layer is of a positive resist type; selectively exposing the resist layer to energy capable of exposing the resist layer, thereby forming an exposed resist portion and an underexposed resist portion, wherein the underexposed resist portion fills at least a portion of the container hole; removing the exposed resist portion, thereby forming an uncovered portion of the container layer; removing the uncovered portion of the container layer using a non-mechanical technique; and wherein selectively exposing the resist layer to energy capable of exposing the resist layer includes exposing the resist layer to energy having an angled incident while rotating the substrate about an axis generally perpendicular to the surface of the insulating layer.