Patent ID: 11877514
Assignee: SOITEC
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A process for producing a crystalline layer of PZT material, comprising:
transferring a monocrystalline seed layer of SrTiO3 material to a carrier substrate of silicon material, the carrier substrate of silicon material comprising two silicon wafers joined together and a detachable interface buried within the carrier substrate; and
epitaxially growing the crystalline layer of PZT material on the monocrystalline seed layer of SrTiO3 material,
wherein transferring the monocrystalline seed layer of SrTiO3 material to the carrier substrate of silicon material comprises joining a monocrystalline substrate of SrTiO3 material to the carrier substrate of silicon material by molecular adhesion of the monocrystalline substrate of SrTiO3 material to the carrier substrate of silicon material, the molecular adhesion comprising bonding the monocrystalline substrate of SrTiO3 material to the carrier substrate of silicon material at ambient temperature and annealing a bonding interface between the monocrystalline substrate of SrTiO3 material and the carrier substrate of silicon material to consolidate the bonding interface.