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    • 7. 发明授权
    • System for wafer-level phosphor deposition
    • 晶圆级荧光粉沉积系统
    • US08987024B2
    • 2015-03-24
    • US13912024
    • 2013-06-06
    • Tao Xu
    • Tao Xu
    • H01L21/00H01L33/50
    • H01L33/50H01L33/508H01L2933/0041
    • System for wafer-level phosphor deposition. In an aspect, a semiconductor wafer is provided that includes a plurality of LED dies wherein at least one die includes an electrical contact, a photo-resist post covering the electrical contact, and a phosphor deposition layer covering the semiconductor wafer and surrounding the photo-resist post. In another aspect, a semiconductor wafer is provided that comprises a plurality of LED dies wherein at least one die comprises an electrical contact, a phosphor deposition layer covering the semiconductor wafer, and a cavity in the phosphor deposition layer exposing the at least one electrical contact.
    • 晶圆级荧光粉沉积系统。 在一方面,提供一种半导体晶片,其包括多个LED管芯,其中至少一个管芯包括电接触,覆盖电接触的光致抗蚀剂柱和覆盖半导体晶片并围绕光电接触的荧光体沉积层, 抗拒帖子 在另一方面,提供了一种半导体晶片,其包括多个LED管芯,其中至少一个管芯包括电接触件,覆盖半导体晶片的磷光体沉积层以及在该磷光体淀积层中暴露至少一个电触点 。
    • 8. 发明授权
    • Phosphor placement in white light emitting diode assemblies
    • 白光发光二极管组件中的磷光体放置
    • US08541802B2
    • 2013-09-24
    • US13361965
    • 2012-01-31
    • Tao XuZhengqing Gan
    • Tao XuZhengqing Gan
    • H01L33/00H01L21/00
    • H01L33/504H01L25/0753H01L33/505H01L2224/48091H01L2224/48137H01L2933/0041H01L2924/00H01L2924/00014
    • A white LED assembly includes a blue LED die attached to a substrate. A first volume of a first luminescent material surrounds the blue LED die in a lateral dimension such that none of the first luminescent material is disposed directly over the blue LED die. The first luminescent material includes a relatively inefficient phosphor having a peak emission wavelength longer than 620 nm and includes substantially no phosphor having a peak emission wavelength shorter than 620 nm. A second volume of a second luminescent material is disposed over the first volume and the blue LED die. The second luminescent material includes a relatively efficient phosphor having a peak emission wavelength shorter than 620 nm and includes substantially no phosphor having a peak emission wavelength longer than 620 nm. Placement of the first and second luminescent materials in this way promotes removal of heat from the inefficient phosphor and reduces the likelihood of interabsorption.
    • 白色LED组件包括附接到基板的蓝色LED管芯。 第一发光材料的第一体积以横向尺寸围绕蓝色LED管芯,使得第一发光材料都不直接设置在蓝色LED管芯上。 第一发光材料包括具有长于620nm的峰值发射波长的相对低效的荧光体,并且基本上不包括具有短于620nm的峰值发射波长的荧光体。 第二体积的第二发光材料设置在第一体积和蓝色LED管芯上。 第二发光材料包括具有短于620nm的峰值发射波长的相对有效的荧光体,并且基本上不包括具有长于620nm的峰值发射波长的荧光体。 以这种方式放置第一和第二发光材料有助于从低效磷光体去除热量,并降低吸收的可能性。