Test structure and methodology for semiconductor stress-induced defects and antifuse based on same test structure
    71.
    发明授权
    Test structure and methodology for semiconductor stress-induced defects and antifuse based on same test structure 失效
    基于相同测试结构的半导体应力诱发缺陷和反熔丝的测试结构和方法

    公开(公告)号:US06624031B2

    公开(公告)日:2003-09-23

    申请号:US09989850

    申请日:2001-11-20

    IPC分类号: H01L21336

    摘要: A method for detecting semiconductor process stress-induced defects. The method comprising: providing a polysilicon-bounded test diode, the diode comprising a diffused first region within an upper portion of a second region of a silicon substrate, the second region of an opposite dopant type from the first region, the first region surrounded by a peripheral dielectric isolation, a peripheral polysilicon gate comprising a polysilicon layer over a dielectric layer and the gate overlapping a peripheral portion of the first region; stressing the diode; and monitoring the stressed diode for spikes in gate current during the stress, determining the frequency distribution of the slope of the forward bias voltage versus the first region current at the pre-selected forward bias voltage and monitoring, after stress, the diode for soft breakdown. A DRAM cell may,be substituted for the diode. The use of the diode as an antifuse is also disclosed.

    摘要翻译: 一种检测半导体工艺应力诱发缺陷的方法。 该方法包括:提供多晶硅界限的测试二极管,二极管包括在硅衬底的第二区域的上部内的扩散的第一区域,与第一区域相反的掺杂剂类型的第二区域,第一区域由 外围电介质隔离,外围多晶硅栅极,包括介电层上的多晶硅层,栅极与第一区域的周边部分重叠; 强调二极管; 并且在应力期间监视施加二极管的栅极电流尖峰,确定正向偏置电压的斜率与预先选择的正向偏置电压下的第一区域电流的频率分布,并且在应力之后监视用于软击穿的二极管 。 二极管可代替DRAM单元。 还公开了使用二极管作为反熔丝。

    High voltage ESD power clamp
    78.
    发明授权
    High voltage ESD power clamp 有权
    高压ESD电源钳

    公开(公告)号:US07457086B2

    公开(公告)日:2008-11-25

    申请号:US11614659

    申请日:2006-12-21

    IPC分类号: H02H3/20 H02H3/22 H02H9/04

    CPC分类号: H01L27/0266 H03K17/08142

    摘要: Method and device for protecting against electrostatic discharge. The method includes configuring a gate of at least one upper transistor of a transistor network connected between power rails to be biased to a prescribed value, and coupling an electrostatic discharge event to a gate of a lower transistor of the transistor network. The at least one upper and at least one lower transistors of the transistor network are respectively coupled between the power rails from a higher voltage to a lower voltage.

    摘要翻译: 用于防止静电放电的方法和装置。 该方法包括配置连接在电源轨之间的晶体管网络的至少一个上晶体管的栅极以被偏置到规定值,以及将静电放电事件耦合到晶体管网络的下晶体管的栅极。 晶体管网络的至少一个上部和至少一个下部晶体管分别从较高电压到较低电压耦合在电源轨之间。

    MOSFET with decoupled halo before extension
    79.
    发明授权
    MOSFET with decoupled halo before extension 失效
    扩展前分离光环的MOSFET

    公开(公告)号:US07253066B2

    公开(公告)日:2007-08-07

    申请号:US10785895

    申请日:2004-02-24

    IPC分类号: H01L21/336

    摘要: An inverse-T transistor is formed by a method that decouples the halo implant, the deep S/D implant and the extension implant, so that the threshold voltage can be set by adjusting the halo implant without being affected by changes to the extension implant that are intended to alter the series resistance of the device. Formation of the inverse-T structure can be made by a damascene method in which a temporary layer deposited over the layer that will form the cross bar of the T has an aperture formed in it to hold the gate electrode, the aperture being lined with vertical sidewalls that provide space for the ledges that form the T. Another method of gate electrode formation starts with a layer of poly, forms a block for the gate electrode, covers the horizontal surfaces outside the gate with an etch-resistant material and etches horizontally to remove material above the cross bars on the T, the cross bars being protected by the etch resistant material.

    摘要翻译: 反向T晶体管通过使晕轮注入,深S / D注入和延伸注入分离的方法形成,使得阈值电压可以通过调整晕轮植入来设定,而不受扩展植入物的变化的影响 旨在改变装置的串联电阻。 逆T结构的形成可以通过镶嵌方法来形成,其中沉积在层上的临时层将形成T的横杆,其中形成有形成在其中的孔以保持栅电极,孔径垂直排列 为形成T的壁架提供空间的侧壁。栅电极形成的另一种方法从多层开始,形成用于栅电极的块,用耐蚀刻材料覆盖栅极外的水平表面,并水平蚀刻 去除T上的横杆上方的材料,横杆由耐蚀刻材料保护。

    Electro-static discharge protection circuit
    80.
    发明授权
    Electro-static discharge protection circuit 有权
    静电放电保护电路

    公开(公告)号:US06965503B2

    公开(公告)日:2005-11-15

    申请号:US10605441

    申请日:2003-09-30

    IPC分类号: H01L27/02 H02H9/00

    CPC分类号: H01L27/0285

    摘要: An ESD protection circuit including the following: one or more inverters (I1, I2, I3), each of the one or more inverters having an input and an output; an RC network (11) having an output node (RCT), output node (RCT) connected with the input of at least one of said one or more inverters; a clamping device (N3) joined with the output of at least one of one or more inverters (I1, I2, I3); and a feedback device (NKP) in communication with clamping device (N3) and output node (RCT) of RC network (11). An RC network may include one or more resistors, and one or more decoupling capacitors. In one embodiment, feedback device (NKP) is an NFET and each of one or more inverters (I1, I2, I3) includes a PFET and NFET pair (P0/N0, P1/N1, P2/N2).

    摘要翻译: 一种ESD保护电路,包括:一个或多个反相器(I 1,I 2,I 3),一个或多个反相器中的每一个具有输入和输出; 具有输出节点(RCT)的RC网络(11),与所述一个或多个逆变器中的至少一个的输入端连接的输出节点(RCT) 与一个或多个逆变器(I 1,I 2,I 3)中的至少一个的输出端连接的夹持装置(N 3); 以及与RC网络(11)的钳位装置(N 3)和输出节点(RCT)通信的反馈装置(NKP)。 RC网络可以包括一个或多个电阻器和一个或多个去耦电容器。 在一个实施例中,反馈装置(NKP)是NFET,并且一个或多个反相器(I 1,I 2,I 3)中的每一个包括PFET和NFET对(P 0 / N 0,P 1 / N 1,P 2 / N 2)。