Dicing-free LED fabrication
    6.
    发明授权
    Dicing-free LED fabrication 有权
    无切割LED制造

    公开(公告)号:US09472714B2

    公开(公告)日:2016-10-18

    申请号:US14566782

    申请日:2014-12-11

    Abstract: Provided is a method of fabricating a light-emitting diode (LED) device. A wafer is provided. The wafer has a sapphire substrate and a semiconductor layer formed on the sapphire substrate. The semiconductor layer contains a plurality of un-separated LED dies. A photo-sensitive layer is formed over the semiconductor layer. A photolithography process is performed to pattern the photo-sensitive layer into a plurality of patterned portions. The patterned portions are separated by a plurality of openings that are each substantially aligned with one of the LED dies. A metal material is formed in each of the openings. The wafer is radiated in a localized manner such that only portions of the wafer that are substantially aligned with the openings are radiated. The sapphire substrate is removed along with un-radiated portions of the semiconductor layer, thereby separating the plurality of LED dies into individual LED dies.

    Abstract translation: 提供一种制造发光二极管(LED)装置的方法。 提供晶片。 晶片具有形成在蓝宝石衬底上的蓝宝石衬底和半导体层。 半导体层包含多个未分离的LED管芯。 在半导体层上形成光敏层。 执行光刻工艺以将感光层图案化成多个图案部分。 图案化部分由多个开口分开,每个开口基本上与LED管芯中的一个对准。 在每个开口中形成金属材料。 以局部方式照射晶片,使得只有基本上与开口对准的晶片的部分被辐射。 蓝宝石衬底与半导体层的未辐射部分一起被去除,从而将多个LED管芯分离成单独的LED管芯。

    DICING-FREE LED FABRICATION
    9.
    发明申请
    DICING-FREE LED FABRICATION 有权
    免费LED制造

    公开(公告)号:US20150093844A1

    公开(公告)日:2015-04-02

    申请号:US14566782

    申请日:2014-12-11

    Abstract: Provided is a method of fabricating a light-emitting diode (LED) device. A wafer is provided. The wafer has a sapphire substrate and a semiconductor layer formed on the sapphire substrate. The semiconductor layer contains a plurality of un-separated LED dies. A photo-sensitive layer is formed over the semiconductor layer. A photolithography process is performed to pattern the photo-sensitive layer into a plurality of patterned portions. The patterned portions are separated by a plurality of openings that are each substantially aligned with one of the LED dies. A metal material is formed in each of the openings. The wafer is radiated in a localized manner such that only portions of the wafer that are substantially aligned with the openings are radiated. The sapphire substrate is removed along with un-radiated portions of the semiconductor layer, thereby separating the plurality of LED dies into individual LED dies.

    Abstract translation: 提供一种制造发光二极管(LED)装置的方法。 提供晶片。 晶片具有形成在蓝宝石衬底上的蓝宝石衬底和半导体层。 半导体层包含多个未分离的LED管芯。 在半导体层上形成光敏层。 执行光刻工艺以将感光层图案化成多个图案部分。 图案化部分由多个开口分开,每个开口基本上与LED管芯中的一个对准。 在每个开口中形成金属材料。 以局部方式照射晶片,使得只有基本上与开口对准的晶片的部分被辐射。 蓝宝石衬底与半导体层的未辐射部分一起被去除,从而将多个LED管芯分离成单独的LED管芯。

    Method of depositing localized coatings
    10.
    发明授权
    Method of depositing localized coatings 有权
    沉积局部涂层的方法

    公开(公告)号:US08815108B2

    公开(公告)日:2014-08-26

    申请号:US12593272

    申请日:2008-04-03

    CPC classification number: H01L21/0331 H01L21/0271

    Abstract: A method of depositing a non-continuous coating of a first material on a substrate, comprising: a) the formation of a mask on this substrate, by forming at least two mask layers, and etching of at least one cavity in these layers, this cavity having an outline such that a coating, deposited on the substrate, through the cavities of the mask, has at least one discontinuity over said outline of the cavity; b) the deposition of the first material on the substrate, through the cavities of the mask, the coating thus deposited having at least one discontinuity over the outline of said cavity; and c) the mask is removed.

    Abstract translation: 一种在衬底上沉积第一材料的非连续涂层的方法,包括:a)在该衬底上形成掩模,通过形成至少两个掩模层,以及蚀刻这些层中的至少一个空腔, 空腔具有轮廓,使得通过掩模的空腔沉积在基底上的涂层在空腔的所述轮廓上具有至少一个不连续性; b)通过掩模的空腔将第一材料沉积在基底上,由此沉积的涂层具有在所述腔的轮廓上的至少一个不连续性; 和c)去除掩模。

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