Patent ID: 9330958
Filing Date: 2016-05-03
CPC Classification: H01L

Claim Text:
1. A method for fabricating a heterostructure comprising at least one thin layer and a carrier substrate comprising a semiconductor material, the method comprising: bonding a first substrate comprising a single-crystal first material and a superficial layer comprising a polycrystalline second material to a second substrate such that a bonding interface is created between the polycrystalline second material and the second substrate; removing from a free surface of one of the first substrate and the second substrate a thickness thereof such that only a thin layer of the one of the first substrate and the second substrate is preserved; generating a layer of amorphous semiconductor material between the single-crystal first material of the first substrate and the bonding interface by amorphization of the polycrystalline second material; and crystallizing the layer of amorphous semiconductor material to form a newly crystallized layer having an orientation the same as an orientation of the adjacent single-crystal first material.