Substrate of gallium nitride single crystal and process for producing the same
    3.
    发明申请
    Substrate of gallium nitride single crystal and process for producing the same 有权
    氮化镓单晶衬底及其制造方法

    公开(公告)号:US20060172512A1

    公开(公告)日:2006-08-03

    申请号:US10546983

    申请日:2004-03-04

    IPC分类号: H01L21/20

    摘要: The present invention relates to a method for producing an epitaxial substrate having a III-V group compound semiconductor crystal represented by the general formula InxGayAlzN (wherein, x+y+z=1, 0≦x≦1, 0≦y≦1, 0≦z≦1) having reduced dislocation density, comprising a first step of covering with a mask made of a different material from the III-V group compound semiconductor so that only portions around points of the crystal constitute openings by using a III-V group compound semiconductor crystal having a plurality of projection shapes and a second step of growing the III-V group compound semiconductor crystal laterally by using the III-V group compound semiconductor crystal at the opening as a seed crystal. According to the present invention, an epitaxial substrate having a III-V group compound semiconductor crystal having low dislocation density and little warp is obtained.

    摘要翻译: 本发明涉及一种用于制造具有由通式为III-V族化合物半导体晶体表示的外延基板的方法,该III-V族化合物半导体晶体由以下通式表示:&lt; N(其中,x + y + z = 1,0 <= x <=1,0,0≤i≤1,0<= z <= 1)具有降低的位错密度,包括第一步覆盖 具有由与III-V族化合物半导体不同的材料制成的掩模,使得通过使用具有多个投影形状的III-V族化合物半导体晶体,仅使晶体周围的部分构成开口,第二步是使 III-V族化合物半导体晶体通过在开口处使用III-V族化合物半导体晶体作为晶种横向。 根据本发明,获得具有位错密度低且翘曲少的III-V族化合物半导体晶体的外延基板。

    Substrate of gallium nitride single crystal and process for producing the same
    4.
    发明授权
    Substrate of gallium nitride single crystal and process for producing the same 有权
    氮化镓单晶衬底及其制造方法

    公开(公告)号:US07399687B2

    公开(公告)日:2008-07-15

    申请号:US10546983

    申请日:2004-03-04

    IPC分类号: H01L21/20

    摘要: The present invention relates to a method for producing an epitaxial substrate having a III-V group compound semiconductor crystal represented by the general formula InxGayAlzN (wherein, x+y+z=1, 0≦x≦1, 0≦y≦1, 0≦z≦1) having reduced dislocation density, comprising a first step of covering with a mask made of a different material from the III-V group compound semiconductor so that only portions around points of the crystal constitute openings by using a III-V group compound semiconductor crystal having a plurality of projection shapes and a second step of growing the III-V group compound semiconductor crystal laterally by using the III-V group compound semiconductor crystal at the opening as a seed crystal. According to the present invention, an epitaxial substrate having a III-V group compound semiconductor crystal having low dislocation density and little warp is obtained.

    摘要翻译: 本发明涉及一种用于制造具有由通式为III-V族化合物半导体晶体表示的外延基板的方法,该III-V族化合物半导体晶体由以下通式表示:&lt; N(其中,x + y + z = 1,0 <= x <=1,0,0≤i≤1,0<= z <= 1)具有降低的位错密度,包括第一步覆盖 具有由与III-V族化合物半导体不同的材料制成的掩模,使得通过使用具有多个投影形状的III-V族化合物半导体晶体,仅使晶体周围的部分构成开口,第二步是使 III-V族化合物半导体晶体通过在开口处使用III-V族化合物半导体晶体作为晶种横向。 根据本发明,获得具有位错密度低且翘曲少的III-V族化合物半导体晶体的外延基板。

    III-V compound semiconductor
    6.
    发明授权
    III-V compound semiconductor 失效
    III-V族化合物半导体

    公开(公告)号:US06844574B1

    公开(公告)日:2005-01-18

    申请号:US09522707

    申请日:2000-03-10

    摘要: Provided is a III-V compound semiconductor having a layer formed from a first III-V compound semiconductor expressed by the general formula InuGavAlwN (where 0≦u≦1, 0≦v≦1, 0≦w≦1, u+v+w=1), a pattern formed on the layer from a material different not only from the first III-V compound semiconductor but also from a second III-V compound semiconductor hereinafter described, and a layer formed on the first III-V compound semiconductor and the pattern from the second III-V compound semiconductor expressed by the general formula InxGayAlzN (where 0≦x≦1, 0≦y≦1, 0≦x≦1, x+y+z=1), wherein the full width at half maximum of the (0004) reflection X-ray rocking curve of the second III-V compound semiconductor is 700 seconds or less regardless of the direction of X-ray incidence. In the III-V compound semiconductor, which is a high quality semiconductor, the occurrence of low angle grain boundaries is suppressed.

    摘要翻译: 提供了具有由通式InuGavAlwN表示的第一III-V族化合物半导体形成的层的III-V族化合物半导体(其中0≤u≤1,0<=v≤1,0<= w < 1,u + v + w =​​ 1),从不同于第一III-V族化合物半导体的材料形成在该层上的图案,以及由下文所述的第二III-V族化合物半导体形成的层 第一III-V族化合物半导体和由通式InxGayAlzN表示的第二III-V族化合物半导体的图案(其中0 <= x <= 1,0 <= y <=1,0,0≤x≤1,x + y + z = 1),其中,与X射线入射方向无关地,第二III-V族化合物半导体的(0004)反射X射线摇摆曲线的半峰全宽为700秒以下。 在作为高质量半导体的III-V族化合物半导体中,抑制了低角度晶界的发生。