Memory cell using BTI effects in high-k metal gate MOS
    74.
    发明授权
    Memory cell using BTI effects in high-k metal gate MOS 有权
    在高k金属门MOS中使用BTI效应的存储单元

    公开(公告)号:US08432751B2

    公开(公告)日:2013-04-30

    申请号:US12976630

    申请日:2010-12-22

    IPC分类号: G11C7/00

    摘要: Techniques and circuitry are disclosed for implementing non-volatile storage that exploit bias temperature instability (BTI) effects of high-k/metal-gate n-type or p-type metal oxide semiconductor (NMOS or PMOS) transistors. A programmed bitcell of, for example, a memory or programmable logic circuit exhibits a threshold voltage shift resulting from an applied programming bias used to program bitcells. In some cases, applying a first programming bias causes the device to have a first state, and applying a second programming bias causes the device to have a second state that is different than the first state. Programmed bitcells can be erased by applying an opposite polarity stress, and re-programmed through multiple cycles. The bitcell configuration can be used in conjunction with column/row select circuitry and/or readout circuitry, in accordance with some embodiments.

    摘要翻译: 公开了用于实现利用高k /金属栅极n型或p型金属氧化物半导体(NMOS或PMOS)晶体管的偏置温度不稳定性(BTI)效应的非易失性存储器的技术和电路。 例如,存储器或可编程逻辑电路的编程位单元表现出由用于编程位单元的应用编程偏置产生的阈值电压偏移。 在一些情况下,施加第一编程偏置使得器件具有第一状态,并且施加第二编程偏置使得器件具有与第一状态不同的第二状态。 可以通过施加相反的极性应力来擦除编程的位单元,并通过多个周期重新编程。 根据一些实施例,位单元配置可以与列/行选择电路和/或读出电路结合使用。

    Selective spacer formation on transistors of different classes on the same device
    75.
    发明授权
    Selective spacer formation on transistors of different classes on the same device 有权
    在同一器件上的不同类晶体管上的选择性间隔物形成

    公开(公告)号:US08154067B2

    公开(公告)日:2012-04-10

    申请号:US12419242

    申请日:2009-04-06

    IPC分类号: H01L31/119 H01L21/8238

    摘要: A method of selectively forming a spacer on a first class of transistors and devices formed by such methods. The method can include depositing a conformal first deposition layer on a substrate with different classes of transistors situated thereon, depositing a blocking layer to at least one class of transistors, dry etching the first deposition layer, removing the blocking layer, depositing a conformal second deposition layer on the substrate, dry etching the second deposition layer and wet etching the remaining first deposition layer. Devices may include transistors of a first class with larger spacers compared to spacers of transistors of a second class.

    摘要翻译: 在通过这种方法形成的第一类晶体管和器件上选择性地形成间隔物的方法。 该方法可以包括在其上具有不同类别的晶体管的衬底上沉积共形第一沉积层,将沉积层分隔成至少一类晶体管,干蚀刻第一沉积层,去除阻挡层,沉积保形第二沉积 在所述衬底上干燥蚀刻所述第二沉积层并湿蚀刻剩余的第一沉积层。 与第二类晶体管的间隔物相比,器件可以包括具有较大间隔物的第一类晶体管。

    SELECTIVE SPACER FORMATION ON TRANSISTORS OF DIFFERENT CLASSES ON THE SAME DEVICE
    77.
    发明申请
    SELECTIVE SPACER FORMATION ON TRANSISTORS OF DIFFERENT CLASSES ON THE SAME DEVICE 有权
    在相同设备上的不同类别的晶体管上形成选择间隔

    公开(公告)号:US20110157854A1

    公开(公告)日:2011-06-30

    申请号:US13040951

    申请日:2011-03-04

    IPC分类号: H05K7/00

    摘要: A method of selectively forming a spacer on a first class of transistors and devices formed by such methods. The method can include depositing a conformal first deposition layer on a substrate with different classes of transistors situated thereon, depositing a blocking layer to at least one class of transistors, dry etching the first deposition layer, removing the blocking layer, depositing a conformal second deposition layer on the substrate, dry etching the second deposition layer and wet etching the remaining first deposition layer. Devices may include transistors of a first class with larger spacers compared to spacers of transistors of a second class.

    摘要翻译: 在通过这种方法形成的第一类晶体管和器件上选择性地形成间隔物的方法。 该方法可以包括在其上具有不同类别的晶体管的衬底上沉积共形第一沉积层,将沉积层分隔成至少一类晶体管,干蚀刻第一沉积层,去除阻挡层,沉积保形第二沉积 在所述衬底上干燥蚀刻所述第二沉积层并湿蚀刻剩余的第一沉积层。 与第二类晶体管的间隔物相比,器件可以包括具有较大间隔物的第一类晶体管。

    Dual layer hard mask for block salicide poly resistor (BSR) patterning
    80.
    发明授权
    Dual layer hard mask for block salicide poly resistor (BSR) patterning 失效
    双层硬掩模用于块状硅化物电阻(BSR)图案化

    公开(公告)号:US07691718B2

    公开(公告)日:2010-04-06

    申请号:US12005944

    申请日:2007-12-27

    IPC分类号: H01L21/20

    CPC分类号: H01L29/8605 H01L28/24

    摘要: In general, in one aspect, a method includes forming a semiconductor substrate having an N+ diffusion region, a shallow trench isolation (STI) region adjacent to the N+ diffusion region, and a blocked salicide poly resistor (BSR) region over the STI region. An oxide layer is over the substrate. A nitride layer is formed over the oxide layer and is annealed. A resist layer is patterned on the annealed nitride layer, wherein the resist layer covers a portion of the BSR region. The annealed nitride layer is etched using the resist layer as a pattern. The resist layer is removed and the oxide layer is etched using the annealed nitride layer as a pattern. Germanium pre-amorphization is implanted into the substrate, wherein the oxide and the annealed nitride layers protect a portion of the BSR region from the implanting.

    摘要翻译: 通常,在一个方面,一种方法包括形成具有N +扩散区域,与N +扩散区域相邻的浅沟槽隔离(STI)区域和在STI区域上的封闭的自对准硅化物多晶硅电阻器(BSR)区域的半导体衬底。 氧化物层在衬底上。 在氧化物层上形成氮化物层并进行退火。 在退火的氮化物层上图案化抗蚀剂层,其中抗蚀剂层覆盖BSR区域的一部分。 使用抗蚀剂层作为图案蚀刻退火的氮化物层。 去除抗蚀剂层,并使用退火的氮化物层作为图案来蚀刻氧化物层。 将锗预非晶化植入衬底中,其中氧化物和退火的氮化物层保护BSR区域的一部分免受植入。