Semiconductor device
    6.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US08247796B2

    公开(公告)日:2012-08-21

    申请号:US12731728

    申请日:2010-03-25

    IPC分类号: H01L29/06

    摘要: A semiconductor device includes a substrate, a superlattice buffer layer that is formed on the substrate and is composed of first AlxGa1-xN layers and second AlxGa1-xN layers having an Al composition greater than that of the first AlxGa1-xN layers, the first and second AlxGa1-xN layers being alternately stacked one by one, both the Al compositions of the first and second AlxGa1-xN layers being greater than 0.3, and a difference in Al composition between the first and second AlxGa1-xN layers being greater than 0 and smaller than 0.6.

    摘要翻译: 半导体器件包括衬底,超晶格缓冲层,其形成在衬底上并且由Al x Ga 1-x N层和Al组分大于第一Al x Ga 1-x N层的Al组分构成的第一Al x Ga 1-x N层, 第二Al x Ga 1-x N层交替层叠,第一和第二Al x Ga 1-x N层的Al组成都大于0.3,第一Al x Ga 1-x N层之间的Al组成差异大于0, 小于0.6。

    Method for fabricating semiconductor device
    10.
    发明授权
    Method for fabricating semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US07947578B2

    公开(公告)日:2011-05-24

    申请号:US12750011

    申请日:2010-03-30

    IPC分类号: H01L21/20 H01L21/36

    摘要: A method for fabricating a semiconductor device including: cleaning an apparatus used to grow a layer including Ga; performing a first step of forming a first layer on a substrate made of silicon by using the apparatus, the first layer including a nitride semiconductor that does not include Ga as a composition element and has a Ga impurity concentration of 2×1018 atoms/cm3 or less; and performing a second step of forming a second layer on the first layer by using the apparatus after the first step is repeatedly carried out multiple times, the second layer including a nitride semiconductor including Ga.

    摘要翻译: 一种制造半导体器件的方法,包括:清洗用于生长包括Ga的层的装置; 通过使用该装置,在由硅构成的衬底上形成第一层的第一工序,第一层包括不包含Ga作为组成元素并且Ga杂质浓度为2×1018原子/ cm3的氮化物半导体,或者 减; 以及在第一步骤之后通过使用该设备在第一层上形成第二层的第二步骤重复进行多次,所述第二层包括包含Ga的氮化物半导体。