Patent ID: 6780766
Filing Date: 2004-08-24
Classification: B82Y,H01L,Y10S

Abstract:
A method of forming regions of differing composition over a substrate, comprising:forming a material over a substrate and forming a pattern of at least one substantially amorphous region and at least one substantially crystalline region within the material, the material having a first composition; the at least one substantially crystalline region defining at least one first region over the substrate, and the at least one substantially amorphous region defining at least one second region over the substrate; and selectively replacing the at least one substantially amorphous region of the material relative to the at least one substantially crystalline region of the material; the at least one substantially amorphous region of the material being selectively replaced with a second composition which is different from the first composition; after the selective replacing, the at least one first region having the first composition and the at least one second region having the second composition.