III-V LIGHT EMITTING DEVICE
    3.
    发明公开
    III-V LIGHT EMITTING DEVICE 审中-公开
    III-V-发光器件

    公开(公告)号:EP1932187A2

    公开(公告)日:2008-06-18

    申请号:EP06821126.7

    申请日:2006-09-22

    IPC分类号: H01L33/00

    摘要: A semiconductor structure includes an n-type region, a p-type region, and a III-nitride light emitting layer disposed between the n-type region and the p-type region. The III-nitride light emitting layer has a lattice constant greater than 3.19 Å. Such a semiconductor structure may be grown on a substrate including a host and a seed layer bonded to the host. In some embodiments, a bonding layer bonds the host to the seed layer. The seed layer may be thinner than a critical thickness for relaxation of strain in the semiconductor structure, such that strain in the semiconductor structure is relieved by dislocations formed in the seed layer, or by gliding between the seed layer and the bonding layer an interface between the two layers. In some embodiments, the host may be separated from the semiconductor structure and seed layer by etching away the bonding layer.

    COMPOSITE HOST-SEED SUBSTRATE FOR GROWING AN III-V LIGHT-EMITTING DEVICE
    7.
    发明公开
    COMPOSITE HOST-SEED SUBSTRATE FOR GROWING AN III-V LIGHT-EMITTING DEVICE 有权
    HOST-KEIMSUBSTRATSVERBUND ZUM WACHSTUM VON III-V LICHTEMITTIERENDEN VORRICHTUNGEN

    公开(公告)号:EP1932186A1

    公开(公告)日:2008-06-18

    申请号:EP06809397.0

    申请日:2006-09-25

    IPC分类号: H01L33/00 H01L21/20

    摘要: A substrate including a host subtrate and a seed layer bonded to the host substrate is provided, then a semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region is grown on the seed layer. In some embodiments, a bonding layer bonds the host substrate to the seed layer. The seed layer may be thinner than a critical thickness for relaxation of strain in the semiconductor structure, such that strain in the semiconductor structure is relieved by dislocations formed in the seed layer, or by gliding between the seed layer and the bonding layer an interface between the two layers. In some embodiments, the host substrate ma be separated from the semiconductor structure and seed layer by etching away the bonding layer.

    摘要翻译: 提供包括与主体结合的主体和种子层的基板,然后在种子层上生长包括设置在n型区域和p型区域之间的发光层的半导体结构。 在一些实施方案中,键合层将主体结合到种子层。 种子层可以比用于缓解半导体结构中的应变的临界厚度薄,使得半导体结构中的应变由种子层中形成的位错或通过在籽晶层和结合层之间滑动而消除, 两层。 在一些实施例中,通过蚀刻掉粘结层,可以将主体与半导体结构和晶种层分离。