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    • 9. 发明公开
    • 광추출 효율이 개선된 발광다이오드 소자 및 이의 제조방법
    • 具有先进光提取效率的发光二极管装置及其制备方法
    • KR1020070008745A
    • 2007-01-18
    • KR1020050062481
    • 2005-07-12
    • 한빔 주식회사
    • 유민아이재승신부건하덕식최민호강종훈
    • H01L33/20
    • An LED device is provided to prevent an electrode material from being corroded by an etch process, by forming an uneven pattern on a light emitting surface of an LED part, by performing an etch process and by forming an electrode. An uneven pattern is formed on a light emitting surface in an LED part. An ohmic contact metal layer is positioned in a recess part which is formed by partially etching the light emitting surface of the unevenly patterned LED part. In the LED part, an undoped layer composed of a III-V group compound and a semiconductor layer are sequentially stacked. The semiconductor layer includes an n-type layer having a III-V group compound and an n-type dopant, an active layer, and a p-type layer having a III-V group compound and a p-type dopant.
    • 提供LED装置,通过在LED部件的发光表面上形成不均匀图案,通过进行蚀刻工艺和形成电极来防止电极材料被蚀刻工艺腐蚀。 在LED部件的发光面上形成凹凸图案。 欧姆接触金属层位于通过部分蚀刻不均匀图案化的LED部分的发光表面而形成的凹部中。 在LED部中依次层叠由III-V族化合物和半导体层构成的未掺杂层。 半导体层包括具有III-V族化合物和n型掺杂剂的n型层,有源层和具有III-V族化合物和p型掺杂剂的p型层。