The invention includes methods of forming regions of differing composition
over a substrate. A first material having a pattern of at least one
substantially amorphous region and at least one substantially crystalline
region is provided over the substrate. The at least one substantially
amorphous region of the first material replaced with a second material,
while the at least one substantially crystaline region is not replaced.
The invention also includes a circuit construction comprising an
electrically conductive material extending within openings in a
substantially crystalline electrically insulative material, and in which
the electrically conductive material corresponds to quantum dots.
