Patent ID: 8962453
Filing Date: 2015-02-24
Classification: C30B,H01L

Abstract:
1. A method of forming a single crystal layer of a material type on a substrate of a different material type, comprising the steps of: (i) providing a substrate of a first material type; (ii) depositing at least one discrete region of catalyst material onto a surface of the substrate, the discrete region defining a seed area of the substrate; (iii) growing a single crystal nanowire of a second material type onto the substrate at the discrete region of catalyst material, the nanowire of a second material type extending upward from the substrate with lateral dimensions not substantially exceeding the seed area; and (iv) changing growth conditions so as to epitaxially grow the second material type towards a lateral direction from said single crystal nanowire, by using the crystalline orientation of the single crystal nanowire to control the growth direction.