Patent ID: 9711352
Date: 2017-07-18
CPC Classifications: C30B,H01L

Claim:
1. A method for covering an area of a substrate with a semiconductor, the method comprising: forming a first insulating layer to cover a crystal seed structure, wherein the first insulating layer also covers the area of the substrate; opening at least one opening in the first insulating layer to expose at least one selective growth area that exposes a surface area of the seed structure; forming a second insulating layer parallel to the first insulating layer and spaced apart from the first insulating layer by a distance; removing a sacrificial material between the second insulating layer and first insulating layer region to form a lateral-growth guiding region for at least one selective growth area; heteroepitaxially growing the semiconductor under first growth conditions into the lateral-growth guiding region from the at least one selective growth area; removing the second insulating layer; epitaxially growing the semiconductor under second growth conditions to form at least one semiconductor tile covering a portion of the area of the substrate; depositing the sacrificial material over the first insulating layer; depositing the second insulating layer over the sacrificial material; and etching vias through the sacrificial material to expose surface areas of the first insulating layer, wherein forming the second insulating layer comprises filling the vias in the sacrificial material with the second insulating material.