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公开(公告)号：US20110147784A1
公开(公告)日：2011-06-23
申请号：US12654391
申请日：2009-12-18
摘要： A nitride light emitting device (LED) according to a non-limiting embodiment of the present invention may include a p-pad and an n-pad, wherein the p-pad and n-pad are disposed on opposite ends of the device. A first p-branch electrode and a second p-branch electrode may extend from the p-pad toward the n-pad, with the first p-branch electrode extending along a length of the device. The second p-branch electrode may have a bent portion so as to extend along a width and length of the device. An n-branch electrode may extend from the n-pad toward the p-pad, wherein a distal end of the n-branch electrode is angled toward the bent portion of the second p-branch electrode. Alternatively, the p-branch and n-branch electrodes may be configured such that a distance between the n-branch electrode and the first and second p-branch electrodes increases with proximity to the n-pad. As a result, the nitride-based LED according to example embodiments may exhibit improved current uniformity, lower forward operating voltage, and higher overall efficiency.
摘要翻译： 根据本发明的非限制性实施例的氮化物发光器件（LED）可以包括p焊盘和n焊盘，其中p焊盘和n焊盘设置在器件的相对端。 第一p支电极和第二p分支电极可以从p焊盘朝向n焊盘延伸，其中第一p分支电极沿着器件的长度延伸。 第二p分支电极可以具有弯曲部分，以沿着装置的宽度和长度延伸。 n支电极可以从n焊盘延伸到p焊盘，其中n支电极的远端朝向第二p分支电极的弯曲部分成角度。 或者，p分支电极和n支电极可以被配置为使得n分支电极与第一和第二p分支电极之间的距离随着n焊盘的接近而增加。 结果，根据示例性实施例的基于氮化物的LED可以表现出改善的电流均匀性，较低的正向工作电压和更高的总体效率。
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公开(公告)号：US20130187179A1
公开(公告)日：2013-07-25
申请号：US13355644
申请日：2012-01-23
CPC分类号： H01L33/54 , H01L2933/005
摘要： A light emitting diode (LED) is provided that includes a host substrate formed from a first material, an n-type layer formed over the host substrate, an active region formed over the n-type layer, and a p-type layer formed over the active region. A layer is formed adjacent to the host substrate and includes a second material, the second material being different from the first material or having a refractive index different from a refractive index of the first material. Further, the second material is formed with a tapered outwards sidewall profile.
摘要翻译： 提供一种发光二极管（LED），其包括由第一材料形成的主体衬底，在主衬底上形成的n型层，形成在n型层上的有源区，以及形成在p型层上的p型层 活跃区域。 形成与主体基板相邻的层，并且包括第二材料，第二材料不同于第一材料或具有与第一材料的折射率不同的折射率。 此外，第二材料形成有锥形的向外侧壁轮廓。
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