Light-emitting diodes on concave texture substrate
    11.
    发明授权
    Light-emitting diodes on concave texture substrate 有权
    凹面纹理基板上的发光二极管

    公开(公告)号:US08629465B2

    公开(公告)日:2014-01-14

    申请号:US13358327

    申请日:2012-01-25

    IPC分类号: H01L33/08

    CPC分类号: H01L33/48 H01L33/20 H01L33/24

    摘要: A semiconductor device having light-emitting diodes (LEDs) formed on a concave textured substrate is provided. A substrate is patterned and etched to form recesses. A separation layer is formed along the bottom of the recesses. An LED structure is formed along the sidewalls and, optionally, along the surface of the substrate between adjacent recesses. In these embodiments, the surface area of the LED structure is increased as compared to a planar surface. In another embodiment, the LED structure is formed within the recesses such that the bottom contact layer is non-conformal to the topology of the recesses. In these embodiments, the recesses in a silicon substrate result in a cubic structure in the bottom contact layer, such as an n-GaN layer, which has a non-polar characteristic and exhibits higher external quantum efficiency.

    摘要翻译: 提供了一种形成在凹面纹理基板上的发光二极管(LED)的半导体器件。 对衬底进行图案化和蚀刻以形成凹陷。 沿着凹部的底部形成分离层。 沿着侧壁和任选地沿着相邻凹部之间的基板的表面形成LED结构。 在这些实施例中,与平面表面相比,LED结构的表面积增加。 在另一个实施例中,LED结构形成在凹部内,使得底部接触层与凹部的拓扑不一致。 在这些实施例中,硅衬底中的凹槽导致底接触层中的立方结构,例如具有非极性特性并且表现出更高外部量子效率的n-GaN层。

    Light-emitting diode integration scheme
    12.
    发明授权
    Light-emitting diode integration scheme 有权
    发光二极管集成方案

    公开(公告)号:US08525216B2

    公开(公告)日:2013-09-03

    申请号:US13269968

    申请日:2011-10-10

    IPC分类号: H01L33/00

    摘要: A circuit structure includes a carrier substrate, which includes a first through-via and a second through-via. Each of the first through-via and the second through-via extends from a first surface of the carrier substrate to a second surface of the carrier substrate opposite the first surface. The circuit structure further includes a light-emitting diode (LED) chip bonded onto the first surface of the carrier substrate. The LED chip includes a first electrode and a second electrode connected to the first through-via and the second through-via, respectively.

    摘要翻译: 电路结构包括载体基板,其包括第一通孔和第二通孔。 第一通孔和第二通孔中的每一个从载体衬底的第一表面延伸到与第一表面相对的载体衬底的第二表面。 电路结构还包括结合到载体基板的第一表面上的发光二极管(LED)芯片。 LED芯片包括分别连接到第一通孔和第二通孔的第一电极和第二电极。

    Method of Separating Light-Emitting Diode from a Growth Substrate
    13.
    发明申请
    Method of Separating Light-Emitting Diode from a Growth Substrate 有权
    将发光二极管与生长衬底分离的方法

    公开(公告)号:US20120298956A1

    公开(公告)日:2012-11-29

    申请号:US13567734

    申请日:2012-08-06

    IPC分类号: H01L33/60 H01L33/04

    摘要: A method of forming a light-emitting diode (LED) device and separating the LED device from a growth substrate is provided. The LED device is formed by forming an LED structure over a growth substrate. The method includes forming and patterning a mask layer on the growth substrate. A first contact layer is formed over the patterned mask layer with an air bridge between the first contact layer and the patterned mask layer. The first contact layer may be a contact layer of the LED structure. After the formation of the LED structure, the growth substrate is detached from the LED structure along the air bridge.

    摘要翻译: 提供一种形成发光二极管(LED)器件并将LED器件与生长衬底分离的方法。 LED器件通过在生长衬底上形成LED结构而形成。 该方法包括在生长衬底上形成和图案化掩模层。 在图案化掩模层上形成第一接触层,在第一接触层和图案化掩模层之间具有空气桥。 第一接触层可以是LED结构的接触层。 在形成LED结构之后,生长衬底沿着空气桥与LED结构分离。

    Light-Emitting Diode with Textured Substrate
    14.
    发明申请
    Light-Emitting Diode with Textured Substrate 有权
    发光二极管与纹理基板

    公开(公告)号:US20120025234A1

    公开(公告)日:2012-02-02

    申请号:US13267701

    申请日:2011-10-06

    IPC分类号: H01L33/06

    摘要: A light-emitting diode (LED) device is provided. The LED device has raised semiconductor regions formed on a substrate. LED structures are formed over the raised semiconductor regions such that bottom contact layers and active layers of the LED device are conformal layers. The top contact layer has a planar surface. In an embodiment, the top contact layers are continuous over a plurality of the raised semiconductor regions while the bottom contact layers and the active layers are discontinuous between adjacent raised semiconductor regions.

    摘要翻译: 提供了一种发光二极管(LED)装置。 LED装置已经凸起形成在基板上的半导体区域。 在凸起的半导体区域上形成LED结构,使得LED器件的底部接触层和有源层是保形层。 顶部接触层具有平坦的表面。 在一个实施例中,顶部接触层在多个凸起的半导体区域上是连续的,而底部接触层和有源层在相邻凸起的半导体区域之间是不连续的。

    Light-Emitting Diode Integration Scheme
    16.
    发明申请
    Light-Emitting Diode Integration Scheme 有权
    发光二极管集成方案

    公开(公告)号:US20100051972A1

    公开(公告)日:2010-03-04

    申请号:US12535525

    申请日:2009-08-04

    IPC分类号: H01L33/00

    摘要: A circuit structure includes a carrier substrate, which includes a first through-via and a second through-via. Each of the first through-via and the second through-via extends from a first surface of the carrier substrate to a second surface of the carrier substrate opposite the first surface. The circuit structure further includes a light-emitting diode (LED) chip bonded onto the first surface of the carrier substrate. The LED chip includes a first electrode and a second electrode connected to the first through-via and the second through-via, respectively.

    摘要翻译: 电路结构包括载体基板,其包括第一通孔和第二通孔。 第一通孔和第二通孔中的每一个从载体衬底的第一表面延伸到与第一表面相对的载体衬底的第二表面。 电路结构还包括结合到载体基板的第一表面上的发光二极管(LED)芯片。 LED芯片包括分别连接到第一通孔和第二通孔的第一电极和第二电极。

    Light-Emitting Diode with Textured Substrate
    17.
    发明申请
    Light-Emitting Diode with Textured Substrate 有权
    发光二极管与纹理基板

    公开(公告)号:US20100032696A1

    公开(公告)日:2010-02-11

    申请号:US12189635

    申请日:2008-08-11

    IPC分类号: H01L33/00

    摘要: A light-emitting diode (LED) device is provided. The LED device has raised semiconductor regions formed on a substrate. LED structures are formed over the raised semiconductor regions such that bottom contact layers and active layers of the LED device are conformal layers. The top contact layer has a planar surface. In an embodiment, the top contact layers are continuous over a plurality of the raised semiconductor regions while the bottom contact layers and the active layers are discontinuous between adjacent raised semiconductor regions.

    摘要翻译: 提供了一种发光二极管(LED)装置。 LED装置已经凸起形成在基板上的半导体区域。 在凸起的半导体区域上形成LED结构,使得LED器件的底部接触层和有源层是保形层。 顶部接触层具有平坦的表面。 在一个实施例中,顶部接触层在多个凸起的半导体区域上是连续的,而底部接触层和有源层在相邻凸起的半导体区域之间是不连续的。

    Light-emitting diode with non-metallic reflector
    20.
    发明授权
    Light-emitting diode with non-metallic reflector 有权
    具有非金属反射器的发光二极管

    公开(公告)号:US08525200B2

    公开(公告)日:2013-09-03

    申请号:US12269497

    申请日:2008-11-12

    IPC分类号: H01L33/00 H01L21/00

    摘要: A light-emitting diode (LED) device is provided. The LED device has a substrate, a reflective structure over the substrate, and an LED structure over the reflective structure. The reflective structure is formed of non-metallic materials. In one embodiment, the reflective structure is formed of alternating layers of different non-metallic materials having different refractive indices. In another embodiment, the reflective structure is formed of alternating layers of high-porosity silicon and low-porosity silicon. In yet another embodiment, the reflective structure is formed of silicon dioxide, which may allow the use of fewer layers. The reflective structure may be formed directly on the same substrate as the LED structure or formed on a separate substrate and then bonded to the LED structure.

    摘要翻译: 提供了一种发光二极管(LED)装置。 LED器件具有衬底,衬底上的反射结构以及反射结构上的LED结构。 反射结构由非金属材料形成。 在一个实施例中,反射结构由具有不同折射率的不同非金属材料的交替层形成。 在另一个实施例中,反射结构由高孔隙率硅和低孔隙率硅的交替层形成。 在另一个实施例中,反射结构由二氧化硅形成,其可以允许使用更少的层。 反射结构可以直接形成在与LED结构相同的基板上,或者形成在单独的基板上,然后结合到LED结构。