Patent ID: 8546238

Claim:
A method for transferring at least one micro-technological layer, said method comprising: preparing a first substrate having a porous layer buried beneath a useful surface at a non-zero distance, forming, by ion implantation, an embrittled zone between the porous layer and the useful surface, bonding the first substrate to a first supporting substrate, causing a detachment at the porous layer by application of a mechanical stress so as to obtain: a remnant of the first substrate, and a detached layer joined to the first supporting substrate and having a bared surface, performing technological steps on the bared surface of the detached layer, bonding the detached layer, by the surface to which the technological steps had been applied, to a second supporting substrate, causing a detachment, at the embrittled zone, by application of heat treatment so as to obtain: a remnant of the detached layer that is joined to the second supporting substrate, and a remnant of the detached layer that is joined to the first supporting substrate.