| http://www.w3.org/ns/prov#value | - A method for defining, on an upper surface of a substrate, two self-aligned areas, including the steps of: depositing a protective layer; depositing a covering layer; opening the protective and covering layers at a location substantially corresponding to a desired border of the two areas; forming a spacer along the edge of the opening, the spacer having a rear portion against said desired border a
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