Field effect transistor devices with low source resistance
    81.
    发明授权
    Field effect transistor devices with low source resistance 有权
    具有低源电阻的场效应晶体管器件

    公开(公告)号:US09029945B2

    公开(公告)日:2015-05-12

    申请号:US13102510

    申请日:2011-05-06

    摘要: A semiconductor device includes a drift layer having a first conductivity type, a well region in the drift layer having a second conductivity type opposite the first conductivity type, and a source region in the well region. The source region has the first conductivity type and defines a channel region in the well region. The source region includes a lateral source region adjacent the channel region and a plurality of source contact regions extending away from the lateral source region opposite the channel region. A body contact region having the second conductivity type is between at least two of the plurality of source contact regions and is in contact with the well region. A source ohmic contact overlaps at least one of the source contact regions and the body contact region. A minimum dimension of a source contact area of the semiconductor device is defined by an area of overlap between the source ohmic contact and the at least one source contact region.

    摘要翻译: 半导体器件包括具有第一导电类型的漂移层,漂移层中具有与第一导电类型相反的第二导电类型的阱区,以及阱区中的源极区。 源区具有第一导电类型并且在阱区中限定沟道区。 源极区域包括与沟道区域相邻的横向源极区域和远离与沟道区域相对的横向源极区域延伸的多个源极接触区域。 具有第二导电类型的体接触区域在多个源极接触区域中的至少两个之间并且与阱区域接触。 源欧姆触点与源极接触区域和身体接触区域中的至少一个重叠。 半导体器件的源极接触区域的最小尺寸由源极欧姆接触和至少一个源极接触区域之间的重叠区域限定。

    TRANSISTOR WITH A-FACE CONDUCTIVE CHANNEL AND TRENCH PROTECTING WELL REGION
    87.
    发明申请
    TRANSISTOR WITH A-FACE CONDUCTIVE CHANNEL AND TRENCH PROTECTING WELL REGION 审中-公开
    具有导通通道和保护区域的晶体管

    公开(公告)号:US20120235164A1

    公开(公告)日:2012-09-20

    申请号:US13482311

    申请日:2012-05-29

    IPC分类号: H01L29/16 H01L29/78

    摘要: A transistor structure optimizes current along the A-face of a silicon carbide body to form an AMOSFET that minimizes the JFET effect in the drift region during forward conduction in the on-state. The AMOSFET further shows high voltage blocking ability due to the addition of a highly doped well region that protects the gate corner region in a trench-gated device. The AMOSFET uses the A-face conduction along a trench sidewall in addition to a buried channel layer extending across portions of the semiconductor mesas defining the trench. A doped well extends from at least one of the mesas to a depth within the current spreading layer that is greater than the depth of the trench. A current spreading layer extends between the semiconductor mesas beneath the bottom of the trench to reduce junction resistance in the on-state. A buffer layer between the trench and the deep well further provides protection from field crowding at the trench corner.

    摘要翻译: 晶体管结构优化沿着碳化硅本体的A面的电流,以形成AMOSFET,其在导通状态的正向导通期间使漂移区域中的JFET效应最小化。 由于添加了在沟槽门控器件中保护栅极角区域的高掺杂阱区域,AMOSFET进一步显示出高电压阻断能力。 除了在限定沟槽的半导体台面的部分上延伸的掩埋沟道层之外,AMOSFET还沿着沟槽侧壁使用A面导电。 掺杂阱从至少一个台面延伸到电流扩散层内的深度大于沟槽的深度。 电流扩展层在沟槽底部下方的半导体台面之间延伸,以降低导通状态下的结电阻。 沟槽与深井之间的缓冲层进一步提供了防止沟渠角落处的场地挤压的保护。

    Distributing parallelism for parallel processing architectures
    88.
    发明授权
    Distributing parallelism for parallel processing architectures 有权
    分布并行处理架构

    公开(公告)号:US08250556B1

    公开(公告)日:2012-08-21

    申请号:US12028003

    申请日:2008-02-07

    IPC分类号: G06F9/44 G06F9/45

    摘要: A system comprises a plurality of computation units interconnected by an interconnection network. A method for configuring the system comprises receiving an initial partitioning of instructions into initial subsets corresponding to different portions of a program; forming a refined partitioning of the instructions into refined subsets each including one or more of the initial subsets, including determining whether to combine a first subset and a second subset to form a third subset according to a comparison of a communication cost between the first subset and second subset and a load cost of the third subset that is based at least in part on a number of instructions issued per cycle by a computation unit; and assigning each refined subset of instructions to one of the computation units for execution on the assigned computation unit.

    摘要翻译: 一种系统包括由互连网互连的多个计算单元。 一种用于配置系统的方法包括:将指令的初始划分接收到对应于节目的不同部分的初始子集; 将所述指令的精细分割形成为精简子集,所述精化子集包括所述初始子集中的一个或多个,包括根据所述第一子集和第一子集之间的通信成本的比较来确定是否组合第一子集和第二子集以形成第三子集 所述第二子集和所述第三子集的负载成本至少部分地基于每个周期由计算单元发出的指令的数量; 以及将每个经精炼的指令子集分配给所述计算单元之一用于在所分配的计算单元上执行。

    ELECTRONIC DEVICE STRUCTURE WITH A SEMICONDUCTOR LEDGE LAYER FOR SURFACE PASSIVATION
    89.
    发明申请
    ELECTRONIC DEVICE STRUCTURE WITH A SEMICONDUCTOR LEDGE LAYER FOR SURFACE PASSIVATION 有权
    具有半导体LED层的电子器件结构用于表面钝化

    公开(公告)号:US20120018738A1

    公开(公告)日:2012-01-26

    申请号:US12843113

    申请日:2010-07-26

    摘要: Electronic device structures including semiconductor ledge layers for surface passivation and methods of manufacturing the same are disclosed. In one embodiment, the electronic device includes a number of semiconductor layers of a desired semiconductor material having alternating doping types. The semiconductor layers include a base layer of a first doping type that includes a highly doped well forming a first contact region of the electronic device and one or more contact layers of a second doping type on the base layer that have been etched to form a second contact region of the electronic device. The etching of the one or more contact layers causes substantial crystalline damage, and thus interface charge, on the surface of the base layer. In order to passivate the surface of the base layer, a semiconductor ledge layer of the semiconductor material is epitaxially grown on at least the surface of the base layer.

    摘要翻译: 公开了包括用于表面钝化的半导体凸缘层的电子器件结构及其制造方法。 在一个实施例中,电子器件包括具有交替掺杂类型的期望半导体材料的多个半导体层。 半导体层包括第一掺杂类型的基极层,其包括形成电子器件的第一接触区域的高度掺杂的阱和在基底层上的第二掺杂类型的一个或多个接触层,其被蚀刻以形成第二掺杂阱 电子设备的接触区域。 一个或多个接触层的蚀刻在基层的表面上引起显着的晶体损伤,并因此导致界面电荷。 为了钝化基底层的表面,半导体材料的半导体凸缘层至少在基底层的表面上外延生长。

    Pattern matching in a multiprocessor environment
    90.
    发明授权
    Pattern matching in a multiprocessor environment 有权
    多处理器环境中的模式匹配

    公开(公告)号:US08065259B1

    公开(公告)日:2011-11-22

    申请号:US12890996

    申请日:2010-09-27

    IPC分类号: G06F17/00 G06N5/02

    摘要: Pattern matching in a plurality of interconnected processing engines includes: accepting a stream of input sequences over an interface and storing the input sequences; storing instructions for matching an input sequence to one or more patterns in memory accessible by a first set of one or more processing engines, and storing instructions for matching an input sequence to one or more patterns in memory accessible by a second set of one or more processing engines; distributing information identifying selected input sequences to the first and second sets of processing engines; and retrieving the identified input sequences to perform pattern matching in the first and second sets of processing engines.

    摘要翻译: 多个互连处理引擎中的模式匹配包括:通过接口接收输入序列流并存储输入序列; 存储用于将输入序列与用于由第一组一个或多个处理引擎访问的存储器中的一个或多个模式进行匹配的指令,以及存储用于将输入序列匹配到存储器中的一个或多个模式的指令,所述存储器可由第二组一个或多个 处理发动机; 将识别所选输入序列的信息分发到所述第一和第二组处理引擎; 以及检索所识别的输入序列以在所述第一和第二组处理引擎中执行模式匹配。