TECHNIQUES FOR IMPROVING AMPLIFIER LINEARITY
    1.
    发明申请
    TECHNIQUES FOR IMPROVING AMPLIFIER LINEARITY 有权
    改善放大器线性度的技术

    公开(公告)号:US20100148873A1

    公开(公告)日:2010-06-17

    申请号:US12334306

    申请日:2008-12-12

    IPC分类号: H03F3/16

    摘要: Techniques for improving the linearity of a cascode amplifier. In an exemplary embodiment, an auxiliary common-gate amplifier is provided in parallel with the principal cascode branch. The auxiliary common-gate amplifier samples a cascoded node in the principal cascode branch. The auxiliary common-gate amplifier generates a current which, when combined with the current generated by the principal cascode branch, cancels a distortion component to generate an output current with improved linearity characteristics. In an exemplary embodiment, a phase shifting network couples the cascoded node to the auxiliary common-gate amplifier, and may include, e.g., a capacitor coupled to an inductor.

    摘要翻译: 提高共源共栅放大器线性度的技术。 在示例性实施例中,与主级联共模分支并联提供辅助共栅放大器。 辅助共栅放大器在主共线分支中采样级联节点。 辅助共栅放大器产生电流,当与由主级联共模分支产生的电流组合时,消除失真分量以产生具有改善的线性特性的输出电流。 在示例性实施例中,相移网络将级联节点耦合到辅助公共门放大器,并且可以包括例如耦合到电感器的电容器。

    Techniques for improving amplifier linearity
    2.
    发明授权
    Techniques for improving amplifier linearity 有权
    提高放大器线性度的技术

    公开(公告)号:US07936220B2

    公开(公告)日:2011-05-03

    申请号:US12334306

    申请日:2008-12-12

    IPC分类号: H03F3/04

    摘要: Techniques for improving the linearity of a cascode amplifier. In an exemplary embodiment, an auxiliary common-gate amplifier is provided in parallel with the principal cascode branch. The auxiliary common-gate amplifier samples a cascoded node in the principal cascode branch. The auxiliary common-gate amplifier generates a current which, when combined with the current generated by the principal cascode branch, cancels a distortion component to generate an output current with improved linearity characteristics. In an exemplary embodiment, a phase shifting network couples the cascoded node to the auxiliary common-gate amplifier, and may include, e.g., a capacitor coupled to an inductor.

    摘要翻译: 提高共源共栅放大器线性度的技术。 在示例性实施例中,与主级联共模分支并联提供辅助共栅放大器。 辅助共栅放大器在主共线分支中采样级联节点。 辅助共栅放大器产生电流,当与由主级联共模分支产生的电流组合时,消除失真分量以产生具有改善的线性特性的输出电流。 在示例性实施例中,相移网络将级联节点耦合到辅助公共门放大器,并且可以包括例如耦合到电感器的电容器。

    Fast-switching low-noise charge pump
    3.
    发明授权
    Fast-switching low-noise charge pump 有权
    快速切换低噪声电荷泵

    公开(公告)号:US08552774B2

    公开(公告)日:2013-10-08

    申请号:US13208456

    申请日:2011-08-12

    IPC分类号: H03L7/06

    CPC分类号: H03L7/0896 H03L7/18

    摘要: In one embodiment of the invention, a method for a charge pump is disclosed. The method includes biasing a plurality of transistors; switching a pair of main transistor switches to apply or remove a net charge on an output terminal though the biased transistors; and turning on auxiliary transistor switches when the main transistor switches are turned off. The auxiliary transistor switches when turned on provide an auxiliary equalizing path to nodes between the main transistor switches and the biased transistors. The auxiliary equalizing path equalizes voltages between the intermediate nodes to rapidly turn off the biased transistors and reduce noise on the output terminal of the charge pump.

    摘要翻译: 在本发明的一个实施例中,公开了一种用于电荷泵的方法。 该方法包括偏置多个晶体管; 切换一对主晶体管开关以通过偏置晶体管施加或去除输出端子上的净电荷; 并且当主晶体管开关断开时,接通辅助晶体管开关。 辅助晶体管开关导通时,为主晶体管开关和偏置晶体管之间的节点提供辅助均衡通路。 辅助均衡路径均衡中间节点之间的电压,以快速关闭偏置晶体管,并降低电荷泵输出端子上的噪声。

    Method for fabricating semiconductor device
    4.
    发明授权
    Method for fabricating semiconductor device 失效
    制造半导体器件的方法

    公开(公告)号:US08187952B2

    公开(公告)日:2012-05-29

    申请号:US12647016

    申请日:2009-12-24

    申请人: Uk Kim Sang-Oh Lee

    发明人: Uk Kim Sang-Oh Lee

    IPC分类号: H01L21/76

    摘要: A method for fabricating a semiconductor device includes etching a semiconductor substrate using a hard mask layer as a barrier to form a trench defining a plurality of active regions, forming a gap-fill layer to gap-fill a portion of the inside of the trench so that the hard mask layer becomes a protrusion, forming spacers covering both sides of the protrusion, removing one of the spacers using a doped etch barrier as an etch barrier, and etching the gap-fill layer using a remaining spacer as an etch barrier to form a side trench exposing one side of the active region.

    摘要翻译: 一种用于制造半导体器件的方法包括使用硬掩模层作为屏障蚀刻半导体衬底以形成限定多个有源区的沟槽,形成间隙填充层以间隙填充沟槽内部的一部分,从而 硬掩模层变成突起,形成覆盖突起的两侧的间隔物,使用掺杂的蚀刻阻挡层去除一个间隔物作为蚀刻阻挡层,并且使用剩余的间隔物作为蚀刻阻挡层来蚀刻间隙填充层以形成 侧面沟槽暴露有源区域的一侧。

    Fast-switching low-noise charge pump
    5.
    发明授权
    Fast-switching low-noise charge pump 有权
    快速切换低噪声电荷泵

    公开(公告)号:US08018269B2

    公开(公告)日:2011-09-13

    申请号:US11953575

    申请日:2007-12-10

    IPC分类号: G05F1/10

    CPC分类号: H03L7/0896 H03L7/18

    摘要: In one embodiment of the invention, a method for a charge pump is disclosed. The method includes biasing a plurality of transistors; switching a pair of main transistor switches to apply or remove a net charge on an output terminal though the biased transistors; and turning on auxiliary transistor switches when the main transistor switches are turned off. The auxiliary transistor switches when turned on provide an auxiliary equalizing path to nodes between the main transistor switches and the biased transistors. The auxiliary equalizing path equalizes voltages between the intermediate nodes to rapidly turn off the biased transistors and reduce noise on the output terminal of the charge pump.

    摘要翻译: 在本发明的一个实施例中,公开了一种用于电荷泵的方法。 该方法包括偏置多个晶体管; 切换一对主晶体管开关以通过偏置晶体管施加或去除输出端子上的净电荷; 并且当主晶体管开关断开时,接通辅助晶体管开关。 辅助晶体管开关导通时,为主晶体管开关和偏置晶体管之间的节点提供辅助均衡通路。 辅助均衡路径均衡中间节点之间的电压,以快速关闭偏置晶体管,并降低电荷泵输出端子上的噪声。

    MASK PATTERN FOR HOLE PATTERNING AND METHOD FOR FABRICATING SEMICONDUCTOR DEVICE USING THE SAME
    7.
    发明申请
    MASK PATTERN FOR HOLE PATTERNING AND METHOD FOR FABRICATING SEMICONDUCTOR DEVICE USING THE SAME 有权
    用于孔型图案的掩模图案及使用其制造半导体器件的方法

    公开(公告)号:US20130337652A1

    公开(公告)日:2013-12-19

    申请号:US13607898

    申请日:2012-09-10

    IPC分类号: H01L21/311

    摘要: A method for fabricating a semiconductor device includes forming an etching target layer over a substrate including a first region and a second region; forming a hard mask layer over the etching target layer; forming a first etch mask over the hard mask layer, wherein the first etch mask includes a plurality of line patterns and a sacrificial spacer layer formed over the line patterns; forming a second etch mask over the first etch mask, wherein the second etch mask includes a mesh type pattern and a blocking pattern covering the second region; removing the sacrificial spacer layer; forming hard mask layer patterns having a plurality of holes by etching the hard mask layer using the second etch mask and the first etch mask; and forming a plurality of hole patterns in the first region by etching the etching target layer using the hard mask layer patterns.

    摘要翻译: 一种制造半导体器件的方法包括在包括第一区域和第二区域的衬底上形成蚀刻目标层; 在蚀刻目标层上形成硬掩模层; 在所述硬掩模层上形成第一蚀刻掩模,其中所述第一蚀刻掩模包括多个线图案和形成在所述线图案上的牺牲间隔层; 在所述第一蚀刻掩模上形成第二蚀刻掩模,其中所述第二蚀刻掩模包括网状图案和覆盖所述第二区域的阻挡图案; 去除牺牲间隔层; 通过使用第二蚀刻掩模和第一蚀刻掩模蚀刻硬掩模层来形成具有多个孔的硬掩模层图案; 以及通过使用所述硬掩模层图案蚀刻所述蚀刻目标层,在所述第一区域中形成多个孔图案。

    Auxiliary varactor for temperature compensation
    8.
    发明授权
    Auxiliary varactor for temperature compensation 有权
    用于温度补偿的辅助变容二极管

    公开(公告)号:US08022780B2

    公开(公告)日:2011-09-20

    申请号:US12107592

    申请日:2008-04-22

    IPC分类号: H03L1/02

    CPC分类号: H03L1/023 H03L1/025

    摘要: Techniques for compensating for the effects of temperature change on voltage controlled oscillator (VCO) frequency are disclosed. In an embodiment, an auxiliary varactor is coupled to an LC tank of the VCO. The auxiliary varactor has a capacitance controlled by a temperature-dependant control voltage to minimize the overall change in VCO frequency with temperature. Techniques for generating the control voltage using digital and analog means are further disclosed.

    摘要翻译: 公开了用于补偿温度变化对压控振荡器(VCO)频率的影响的技术。 在一个实施例中,辅助变容二极管耦合到VCO的LC箱。 辅助变容二极管具有由温度依赖控制电压控制的电容,以最小化VCO频率随温度的总体变化。 进一步公开了使用数字和模拟装置产生控制电压的技术。

    VCO TUNING WITH TEMPERATURE COMPENSATION
    9.
    发明申请
    VCO TUNING WITH TEMPERATURE COMPENSATION 审中-公开
    VCO调谐与温度补偿

    公开(公告)号:US20100225402A1

    公开(公告)日:2010-09-09

    申请号:US12400658

    申请日:2009-03-09

    IPC分类号: H03L7/00

    摘要: Techniques for setting a fine tuning input signal Vtune for a voltage-controlled oscillator (VCO) in a coarse tuning mode of the VCO. In an exemplary embodiment, the fine tuning input signal during coarse tuning mode is made temperature-dependent to account for possible variation of Vtune over temperature during fine tuning mode. Methods and apparatuses employing the techniques are further described.

    摘要翻译: 在VCO的粗调模式下为压控振荡器(VCO)设置微调输入信号Vtune的技术。 在一个示例性实施例中,在微调模式期间,微调输入信号变得温度依赖于在微调模式期间Vtune随温度的可能变化。 进一步描述采用这些技术的方法和装置。

    VCO CAPACITOR BANK TRIMMING AND CALIBRATION
    10.
    发明申请
    VCO CAPACITOR BANK TRIMMING AND CALIBRATION 有权
    VCO电容器银行校准和校准

    公开(公告)号:US20090278620A1

    公开(公告)日:2009-11-12

    申请号:US12116527

    申请日:2008-05-07

    IPC分类号: H03L7/099

    CPC分类号: H03L7/099 H03L7/10

    摘要: Techniques are disclosed for trimming a capacitance associated with a capacitor bank for use in a voltage-controlled oscillator (VCO). In an embodiment, each capacitance is sub-divided into a plurality of constituent capacitances. The constituent capacitances may be selectively enabled or disabled to trim the step sizes of the capacitor bank. Further techniques are disclosed for calibrating the trimmable capacitance to minimize step size error for the capacitor bank.

    摘要翻译: 公开了用于修整与用于压控振荡器(VCO)的电容器组相关的电容的技术。 在一个实施例中,每个电容被细分成多个组成电容。 可以选择性地使能或禁用构成电容来修整电容器组的步长。 公开了用于校准可调整电容以最小化电容器组的步长误差的其它技术。