Light-emitting diodes on concave texture substrate
    1.
    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

    CPC classification number: H01L33/48 H01L33/20 H01L33/24

    Abstract: 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.

    Abstract translation: 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。

    Through silicon via (TSV) isolation structures for noise reduction in 3D integrated circuit
    2.
    发明授权
    Through silicon via (TSV) isolation structures for noise reduction in 3D integrated circuit 有权
    通过硅通孔(TSV)隔离结构降低3D集成电路

    公开(公告)号:US08546953B2

    公开(公告)日:2013-10-01

    申请号:US13324405

    申请日:2011-12-13

    CPC classification number: H01L23/481 H01L2924/0002 H01L2924/00

    Abstract: Through silicon via (TSV) isolation structures are provided and suppress electrical noise such as may be propagated through a semiconductor substrate when caused by a signal carrying active TSV such as used in 3D integrated circuit packaging. The isolation TSV structures are surrounded by an oxide liner and surrounding dopant impurity regions. The surrounding dopant impurity regions may be P-type dopant impurity regions that are coupled to ground or N-type dopant impurity regions that may advantageously be coupled to VDD. The TSV isolation structure is advantageously disposed between an active, signal carrying TSV and active semiconductor devices and the TSV isolation structures may be formed in an array that isolates an active, signal carrying TSV structure from active semiconductor devices.

    Abstract translation: 提供通过硅通孔(TSV)隔离结构,并且抑制诸如在由3D集成电路封装中使用的携带有源TSV的信号引起的时候可能传播通过半导体衬底的电噪声。 隔离TSV结构被氧化物衬垫和周围的掺杂剂杂质区包围。 周围的掺杂剂杂质区域可以是耦合到接地的P型掺杂剂杂质区域或者可以有利地连接到VDD的N型掺杂剂杂质区域。 TSV隔离结构有利地设置在有源信号承载TSV和有源半导体器件之间,并且TSV隔离结构可以形成为将有源信号传输TSV结构与有源半导体器件隔离的阵列。

    Method for thinning a wafer
    4.
    发明授权
    Method for thinning a wafer 有权
    减薄晶片的方法

    公开(公告)号:US08252682B2

    公开(公告)日:2012-08-28

    申请号:US12704695

    申请日:2010-02-12

    CPC classification number: H01L21/76898 H01L2224/02372

    Abstract: A method for thinning a wafer is provided. In one embodiment, a wafer is provided having a plurality of semiconductor chips, the wafer having a first side and a second side opposite the first side, wherein each of the chips includes a set of through silicon vias (TSVs), each of the TSVs substantially sealed by a liner layer and a barrier layer. A wafer carrier is provided for attaching to the second side of the wafer. The first side of the wafer is thinned and thereafer recessed to partially expose portions of the liner layers, barrier layers and the TSVs protruding from the wafer. An isolation layer is deposited over the first side of the wafer and the top portions of the liner layers, barrier layers and the TSVs. Thereafter, an insulation layer is deposited over the isolation layer. The insulation layer is then planarized to expose top portions of the TSVs. A dielectric layer is deposited over the planarized first side of the wafer. One or more electrical contacts are formed in the dielectric layer for electrical connection to the exposed one or more TSVs.

    Abstract translation: 提供了一种用于薄化晶片的方法。 在一个实施例中,提供具有多个半导体芯片的晶片,晶片具有第一侧和与第一侧相对的第二侧,其中每个芯片包括一组穿通硅通孔(TSV),每个TSV 基本上被衬垫层和阻挡层密封。 提供晶片载体以附接到晶片的第二侧。 晶片的第一侧变薄并且凹陷以部分地暴露衬里层,阻挡层和从晶片突出的TSV的部分。 隔离层沉积在晶片的第一侧和衬垫层,阻挡层和TSV的顶部之上。 此后,绝缘层沉积在隔离层上。 然后将绝缘层平坦化以暴露TSV的顶部。 电介质层沉积在晶片的平坦化第一侧上。 在电介质层中形成一个或多个电触头,用于与暴露的一个或多个TSV电连接。

    Light-Emitting Diode with Textured Substrate
    6.
    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

    Abstract: 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.

    Abstract translation: 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。

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