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Abstract

A method for fabricating a structure comprises preparing a first pseudo-substrate, and in-depth weakening the first pseudo-substrate by ion implantation at a certain depth in the first pseudo-substrate. The first pseudo-substrate is prepared by providing a single crystal substrate comprising a piezoelectric material; forming an oxide layer on a surface of the single crystal substrate; and transferring a piezoelectric layer of the single crystal substrate adjacent the oxide layer to a handle substrate to form the first pseudo-substrate. The method further comprises bonding the first pseudo-substrate to a substrate to provide an assembly, and separating the assembly at the ion-implanted depth of the first pseudo-substrate to form the structure and a second pseudo-substrate. The structure comprises at least a portion of the piezoelectric layer of the single crystal substrate on the substrate.

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First Claim