REMOVABLE STRUCTURE AND REMOVAL METHOD USING THE STRUCTURE

    公开(公告)号:US20210050249A1

    公开(公告)日:2021-02-18

    申请号:US16969346

    申请日:2019-01-14

    Applicant: Soitec

    Abstract: A detachable structure comprises a carrier substrate and a silicon oxide layer positioned on the substrate at a first interface. The detachable structure is notable in that: the oxide layer has a thickness of less than 200 nm; light hydrogen and/or helium species are distributed deeply and over the entire area of the structure according to an implantation profile, a maximum concentration of which is located in the thickness of the oxide layer; the total dose of implanted light species, relative to the thickness of the oxide layer, exceeds, at least by a factor of five, the solubility limit of these light species in the oxide layer.

    Removable structure and removal method using the structure

    公开(公告)号:US11424156B2

    公开(公告)日:2022-08-23

    申请号:US16969346

    申请日:2019-01-14

    Applicant: Soitec

    Abstract: A detachable structure comprises a carrier substrate and a silicon oxide layer positioned on the substrate at a first interface. The detachable structure is notable in that: the oxide layer has a thickness of less than 200 nm; light hydrogen and/or helium species are distributed deeply and over the entire area of the structure according to an implantation profile, a maximum concentration of which is located in the thickness of the oxide layer; the total dose of implanted light species, relative to the thickness of the oxide layer, exceeds, at least by a factor of five, the solubility limit of these light species in the oxide layer.

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