Stenciling phosphor layers on light emitting diodes
    9.
    发明授权
    Stenciling phosphor layers on light emitting diodes 有权
    在发光二极管上印模荧光粉层

    公开(公告)号:US06650044B1

    公开(公告)日:2003-11-18

    申请号:US09688053

    申请日:2000-10-13

    IPC分类号: H01J162

    摘要: A method for forming a luminescent layer on a light emitting semiconductor device includes positioning a stencil on a substrate such that a light emitting semiconductor device disposed on the substrate is located within an opening in the stencil, depositing a stenciling composition including luminescent material in the opening, removing the stencil from the substrate, and curing the stenciling composition to a solid state. The resulting light emitting device includes a stack of layers including semiconductor layers comprising an active region and a luminescent material containing layer having a substantially uniform thickness disposed around at least a portion of the stack. A surface of the luminescent material containing layer not adjacent to the stack substantially conforms to a shape of the stack. In one embodiment, the light emitting device emits white light in a uniformly white spatial profile.

    摘要翻译: 一种在发光半导体器件上形成发光层的方法包括将模板定位在衬底上,使得设置在衬底上的发光半导体器件位于模板的开口内,将包含发光材料的模版组合物沉积在开口中 ,从基板上去除模板,并将模版组合物固化成固态。 所得到的发光器件包括一叠层,其包括半导体层,该半导体层包括有源区和在堆叠的至少一部分周围设置的具有基本上均匀的厚度的发光材料含有层。 不与堆叠相邻的发光材料含有层的表面基本上符合堆叠的形状。 在一个实施例中,发光器件以均匀的白色空间轮廓发射白光。