METHOD FOR MANUFACTURING A SUBSTRATE

    公开(公告)号:US20210066063A1

    公开(公告)日:2021-03-04

    申请号:US17095550

    申请日:2020-11-11

    Applicant: Soitec

    Abstract: A method for manufacturing a substrate includes the following steps: (a) providing a support substrate with a first coefficient of thermal expansion, having on one of its faces a first plurality of trenches parallel to each other in a first direction, and a second plurality of trenches parallel to each other in a second direction; (b) transferring a useful layer from a donor substrate to the support substrate, the useful layer having a second coefficient of thermal expansion; wherein an intermediate layer is inserted between the front face of the support substrate and the useful layer, the intermediate layer having a coefficient of thermal expansion between the first and second coefficients of thermal expansion.

    STRUCTURED SUBSTRATE FOR LEDS WITH HIGH LIGHT EXTRACTION
    20.
    发明申请
    STRUCTURED SUBSTRATE FOR LEDS WITH HIGH LIGHT EXTRACTION 有权
    具有高光提取功能的LED的结构基板

    公开(公告)号:US20150001568A1

    公开(公告)日:2015-01-01

    申请号:US14370903

    申请日:2013-01-04

    Abstract: A device for back-scattering an incident light ray, including: a host substrate; a structured layer; a first face in contact with a front face of the host substrate; a second flat face parallel to the first face; a first material and a second material which form, in a mixed plane, alternating surfaces at least one of whose dimensions is between 300 nm and 800 nm, the mixed plane is between the first and second face of the structured layer; wherein the refractive index of the first and of the second material are different, the structured layer is covered by a specific layer, the specific layer is made of a material which is different from the first and second materials of the structured layer, and the specific layer is crystalline and semi-conductive.

    Abstract translation: 一种用于对入射光线进行背散射的装置,包括:主机基板; 结构化层; 与主体基板的前表面接触的第一面; 平行于第一面的第二平面; 第一材料和第二材料,其在混合平面中形成至少一个其尺寸在300nm和800nm之间的交替表面,所述混合平面位于所述结构化层的第一和第二面之间; 其中所述第一和第二材料的折射率不同,所述结构化层被特定层覆盖,所述特定层由与所述结构化层的第一和第二材料不同的材料制成,并且所述特定层 层是晶体和半导电的。

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