公开(公告)号：US20210328093A1

公开(公告)日：2021-10-21

申请号：US17170133

申请日：2021-02-08

Applicant: MICROLINK DEVICES, INC.

Inventor： Noren Pan ,  Glen Hillier ,  Duy Phach Vu ,  Rao Tatavarti ,  Christopher Youtsey ,  David McCallum ,  Genevieve Martin

IPC: H01L31/18 ,  H01L31/0687

Abstract: The present invention utilizes epitaxial lift-off in which a sacrificial layer is included in the epitaxial growth between the substrate and a thin film III-V compound solar cell. To provide support for the thin film III-V compound solar cell in absence of the substrate, a backing layer is applied to a surface of the thin film III-V compound solar cell before it is separated from the substrate. To separate the thin film III-V compound solar cell from the substrate, the sacrificial layer is removed as part of the epitaxial lift-off. Once the substrate is separated from the thin film III-V compound solar cell, the substrate may then be reused in the formation of another thin film III-V compound solar cell.

公开(公告)号：US11901476B2

公开(公告)日：2024-02-13

申请号：US17170133

申请日：2021-02-08

Applicant: MICROLINK DEVICES, INC.

Inventor： Noren Pan ,  Glen Hillier ,  Duy Phach Vu ,  Rao Tatavarti ,  Christopher Youtsey ,  David McCallum ,  Genevieve Martin

IPC: H01L31/18 ,  H01L31/0687

CPC classification number: H01L31/1852 ,  H01L31/06875 ,  H01L31/1844 ,  H01L31/1896

Abstract: The present invention utilizes epitaxial lift-off in which a sacrificial layer is included in the epitaxial growth between the substrate and a thin film III-V compound solar cell. To provide support for the thin film III-V compound solar cell in absence of the substrate, a backing layer is applied to a surface of the thin film III-V compound solar cell before it is separated from the substrate. To separate the thin film III-V compound solar cell from the substrate, the sacrificial layer is removed as part of the epitaxial lift-off. Once the substrate is separated from the thin film III-V compound solar cell, the substrate may then be reused in the formation of another thin film III-V compound solar cell.