Semiconductor device
    57.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US06977395B2

    公开(公告)日:2005-12-20

    申请号:US10433327

    申请日:2002-07-12

    摘要: A semiconductor device has at least a GaN system semiconductor having n-conductivity type and a GaN system semiconductor having p-conductivity type layered on a substrate. Electrodes are formed on both surfaces of the GaN system semiconductor layer having n-conductivity type and the GaN system semiconductor layer having p-conductivity type. A first electrode including at least silver and a second electrode excluding silver are formed on the surface of the GaN system semiconductor layer having p-conductivity type, with the second electrode surrounding the periphery of the first electrode. In addition, the first electrode has an opening at which the GaN system semiconductor layer having p-conductivity type is exposed inside of the outline of the first electrode. According to such structure, it is possible to realize a device having high luminous efficiency in use and high reliability.

    摘要翻译: 半导体器件至少具有n导电型的GaN系半导体和在衬底上层叠有p导电型的GaN系半导体。 电极形成在具有n导电型的GaN系半导体层和具有p导电型的GaN系半导体层的两个表面上。 在具有p导电型的GaN系半导体层的表面上形成有至少包含银和除银以外的第二电极的第一电极,第二电极围绕第一电极的周边。 此外,第一电极具有开口,在该开口处具有p导电型的GaN系半导体层暴露在第一电极的轮廓内部。 根据这样的结构,能够实现使用时的发光效率高,可靠性高的装置。