Systems and methods for determining adjustable wafer acceptance criteria based on chip characteristics
    1.
    发明授权
    Systems and methods for determining adjustable wafer acceptance criteria based on chip characteristics 有权
    基于芯片特性确定可调晶片接收标准的系统和方法

    公开(公告)号:US08862417B2

    公开(公告)日:2014-10-14

    申请号:US13151337

    申请日:2011-06-02

    IPC分类号: G01N37/00 G06F17/50 H01L21/66

    摘要: Systems and methods for determining adjustable wafer acceptance criteria based on chip characteristics. The method includes measuring a density of at least one chip. The method further includes computing a difference in density between the density of the at least one chip and a density of at least one kerf structure. The method further includes calculating an offset value to modify a Wafer Acceptance Criteria (WAC) to match the density difference between the at least one chip and the at least one kerf structure. The method further includes applying the offset value to the WAC for a wafer level measurement in order to increase chip yield performance.

    摘要翻译: 基于芯片特性确定可调晶片接收标准的系统和方法。 该方法包括测量至少一个芯片的密度。 该方法还包括计算至少一个芯片的密度与至少一个切口结构的密度之间的密度差。 该方法还包括计算偏移值以修改晶片验收标准(WAC)以匹配至少一个芯片和至少一个切口结构之间的密度差。 该方法还包括将偏移值应用于晶片级测量的WAC以提高芯片产量性能。

    Alternate power gating enablement
    2.
    发明授权
    Alternate power gating enablement 失效
    备用电源门控启用

    公开(公告)号:US08519772B2

    公开(公告)日:2013-08-27

    申请号:US13075652

    申请日:2011-03-30

    IPC分类号: H03K17/687

    CPC分类号: H03K19/0016

    摘要: Structures and methods for implementing alternating power gating in integrated circuits. A semiconductor structure includes a power gated circuit including a group of power gate switches and an alternating enable generator that generates enabling signals. Each respective one of the power gate switches is enabled by a respective one of the enabling signals. The alternating generator generates the enabling signals such that a first enabled power gate switch is alternated amongst the group of power gate switches.

    摘要翻译: 在集成电路中实现交流电源门控的结构和方法。 半导体结构包括电源门控电路,其包括一组电源门开关和产生使能信号的交替使能发生器。 每个相应的一个功率门开关由使能信号中的相应一个使能。 交替发电机产生使能信号,使得第一使能电源门极开关在一组电源门开关之间交替。

    SYSTEMS AND METHODS FOR DETERMINING ADJUSTABLE WAFER ACCEPTANCE CRITERIA BASED ON CHIP CHARACTERISTICS
    3.
    发明申请
    SYSTEMS AND METHODS FOR DETERMINING ADJUSTABLE WAFER ACCEPTANCE CRITERIA BASED ON CHIP CHARACTERISTICS 有权
    用于基于芯片特性确定可调节波形接受标准的系统和方法

    公开(公告)号:US20120310574A1

    公开(公告)日:2012-12-06

    申请号:US13151337

    申请日:2011-06-02

    IPC分类号: G06F19/00

    摘要: Systems and methods for determining adjustable wafer acceptance criteria based on chip characteristics. The method includes measuring a density of at least one chip. The method further includes computing a difference in density between the density of the at least one chip and a density of at least one kerf structure. The method further includes calculating an offset value to modify a Wafer Acceptance Criteria (WAC) to match the density difference between the at least one chip and the at least one kerf structure. The method further includes applying the offset value to the WAC for a wafer level measurement in order to increase chip yield performance.

    摘要翻译: 基于芯片特性确定可调晶片接收标准的系统和方法。 该方法包括测量至少一个芯片的密度。 该方法还包括计算至少一个芯片的密度与至少一个切口结构的密度之间的密度差。 该方法还包括计算偏移值以修改晶片验收标准(WAC)以匹配至少一个芯片和至少一个切口结构之间的密度差。 该方法还包括将偏移值应用于晶片级测量的WAC以提高芯片产量性能。

    Method for improved triggering and oscillation suppression of ESD clamping devices
    4.
    发明授权
    Method for improved triggering and oscillation suppression of ESD clamping devices 失效
    改善ESD钳位装置触发和振荡抑制的方法

    公开(公告)号:US07646573B2

    公开(公告)日:2010-01-12

    申请号:US12133424

    申请日:2008-06-05

    IPC分类号: H02H9/00 H02H1/00

    CPC分类号: H01L27/0266

    摘要: An apparatus for protecting an integrated circuit from electrostatic discharge (ESD) includes an RC trigger device configured between a pair of power rails, a first control path coupled to the RC trigger device, and a second control path coupled to the RC trigger device. A power clamp is configured between the power rails for discharging current from an ESD event, the power clamp having an input coupled to outputs of the first and second control paths, the power clamp independently controllable by the first and second control paths. The first and second control paths are further configured to prevent the power clamp from reactivating following an initial deactivation of the power clamp.

    摘要翻译: 用于保护集成电路免受静电放电(ESD)的装置包括RC触发装置,其配置在耦合到RC触发装置的一对电源轨,第一控制路径和耦合到RC触发装置的第二控制路径之间。 功率钳被配置在用于从ESD事件放电的电源轨之间,功率钳具有耦合到第一和第二控制路径的输出的输入,功率钳由第一和第二控制路径独立地控制。 第一和第二控制路径还被配置为防止在电源钳的初始去激活之后电源钳位被重新激活。

    CONTENT ADDRESSABLE MEMORY WITH HIDDEN TABLE UPDATE, DESIGN STRUCTURE AND METHOD
    5.
    发明申请
    CONTENT ADDRESSABLE MEMORY WITH HIDDEN TABLE UPDATE, DESIGN STRUCTURE AND METHOD 审中-公开
    内容可寻址存储器,具有隐藏表更新,设计结构和方法

    公开(公告)号:US20090240875A1

    公开(公告)日:2009-09-24

    申请号:US12050340

    申请日:2008-03-18

    IPC分类号: G11C15/04 G11C7/00

    CPC分类号: G11C15/043 G11C11/406

    摘要: Disclosed are embodiments of memory circuit having two discrete memory devices with two discrete memory arrays that store essentially identical data banks. The first device is a conventional memory adapted to perform all maintenance operations that require read functions (i.e., all update and refresh operations). The second device is a DRAM-based CAM device adapted to perform parallel search and overwrite operations only. Performance of overwrite operations by the second device occurs in conjunction with performance of maintenance operations by the first device so that corresponding memory cells in the two devices store essentially identical data values. Since the data banks in the memory devices are essentially identical and since maintenance and parallel search operations are not performed by the same device, the parallel search operations can be performed without interruption. Also disclosed are embodiments of an associated design structure and method.

    摘要翻译: 公开了具有两个分立存储器件的存储器电路的实施例,其具有存储基本上相同的数据库的两个分立存储器阵列。 第一设备是适于执行需要读取功能(即,所有更新和刷新操作)的所有维护操作的常规存储器。 第二设备是仅适用于执行并行搜索和重写操作的基于DRAM的CAM设备。 第二设备的覆盖操作的性能与第一设备的维护操作的性能一起发生,使得两个设备中的相应存储器单元存储基本上相同的数据值。 由于存储器件中的数据库基本上相同,并且由于维护和并行搜索操作不由同一设备执行,所以可以不中断地执行并行搜索操作。 还公开了相关设计结构和方法的实施例。

    IC layout optimization to improve yield
    6.
    发明授权
    IC layout optimization to improve yield 失效
    IC布局优化提高产量

    公开(公告)号:US07503020B2

    公开(公告)日:2009-03-10

    申请号:US11424922

    申请日:2006-06-19

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5068

    摘要: A method of and service for optimizing an integrated circuit design to improve manufacturing yield. The invention uses manufacturing data and algorithms to identify areas with high probability of failures, i.e. critical areas. The invention further changes the layout of the circuit design to reduce critical area thereby reducing the probability of a fault occurring during manufacturing. Methods of identifying critical area include common run, geometry mapping, and Voronoi diagrams. Optimization includes but is not limited to incremental movement and adjustment of shape dimensions until optimization objectives are achieved and critical area is reduced.

    摘要翻译: 一种用于优化集成电路设计以提高制造产量的方法和服务。 本发明使用制造数据和算法来识别故障概率高的区域,即关键区域。 本发明进一步改变电路设计的布局以减少临界面积,从而降低在制造过程中发生故障的可能性。 确定关键区域的方法包括通用运行,几何映射和Voronoi图。 优化包括但不限于形状尺寸的增量移动和调整,直到达到优化目标并减小关键面积。

    Voltage Detection Circuit in an Integrated Circuit and Method of Generating a Trigger Flag Signal
    7.
    发明申请
    Voltage Detection Circuit in an Integrated Circuit and Method of Generating a Trigger Flag Signal 有权
    集成电路中的电压检测电路和产生触发标志信号的方法

    公开(公告)号:US20090021289A1

    公开(公告)日:2009-01-22

    申请号:US12242114

    申请日:2008-09-30

    IPC分类号: H03L7/00

    CPC分类号: H03K5/153

    摘要: An integrated circuit that includes at least one tunneling device voltage detection circuit for generating a trigger flag signal. The tunneling device voltage detection circuit includes first and second voltage dividers receiving a supply voltage and having corresponding respective first and second internal node output voltages. The first and second voltage dividers are configured so the first output voltage is linear relative to the supply voltage and so that the second output voltage is nonlinear relative to the supply voltage. As the supply voltage ramps up, the profiles of the first and second output voltage cross at a particular voltage. An operational amplifier circuit senses when the first and second output voltages become equal and, in response thereto, outputs a trigger signal that indicates that the supply voltage has reached a certain level.

    摘要翻译: 一种集成电路,其包括用于产生触发标志信号的至少一个隧道装置电压检测电路。 隧道装置电压检测电路包括接收电源电压并具有对应的相应的第一和第二内部节点输出电压的第一和第二分压器。 第一和第二分压器被配置为使得第一输出电压相对于电源电压是线性的,并且使得第二输出电压相对于电源电压是非线性的。 随着电源电压上升,第一和第二输出电压的曲线在特定电压下交叉。 运算放大器电路检测第一和第二输出电压何时相等,并且响应于此,输出指示电源电压达到一定水平的触发信号。

    Digital delay line with low insertion delay
    8.
    发明授权
    Digital delay line with low insertion delay 失效
    具有低插入延迟的数字延迟线

    公开(公告)号:US06285229B1

    公开(公告)日:2001-09-04

    申请号:US09471898

    申请日:1999-12-23

    IPC分类号: H03H1126

    摘要: A variable digital delay line with an insertion delay as low as a single delay element yet capable of providing a large programmable delay with a small simple control mechanism. A loop connects an input to an output through selectable first delay elements such as 2:1 muxes and selectable second delay elements such as pairs of inverters by way of a plurality of intermediate nodes having a tap. A plurality of sneak paths are available wherein the loop by passes a remainder of first delay elements and/or second delay elements by way of the taps at the intermediate nodes.

    摘要翻译: 一种可变数字延迟线,其插入延迟低至单个延迟元件,但能够利用小的简单控制机制提供大的可编程延迟。 环路通过可选择的第一延迟元件(例如2:1多路复用器)和可选择的第二延迟元件(例如成对的反相器)通过具有抽头的多个中间节点将输入连接到输出。 多个潜行路径是可用的,其中循环通过中间节点处的抽头通过第一延迟元件的剩余部分和/或第二延迟元件。

    Frequency range trimming for a delay line
    9.
    发明授权
    Frequency range trimming for a delay line 有权
    延迟线的频率范围修整

    公开(公告)号:US06229364B1

    公开(公告)日:2001-05-08

    申请号:US09274633

    申请日:1999-03-23

    IPC分类号: H03K513

    CPC分类号: H03L7/0814 H03K5/131

    摘要: A delay line, in accordance with the invention, includes a plurality of delay elements connecting an input and an output, the delay elements for causing a delay to be introduced to a signal passing through the delay elements. A voltage device is included for regulating power to the plurality of delay elements, the voltage device being adjustable to provide at least one predetermined voltage to the delay elements such that the delay in the delay elements is modified according to the predetermined voltage(s). The delay line may be employed in a delay locked loop, a clock circuit or other circuits.

    摘要翻译: 根据本发明的延迟线包括连接输入和输出的多个延迟元件,延迟元件用于引入延迟以引入通过延迟元件的信号。 包括用于调节对多个延迟元件的电力的电压装置,所述电压装置是可调节的,以向延迟元件提供至少一个预定电压,使得延迟元件中的延迟根据预定电压被修改。 延迟线可以用在延迟锁定环路,时钟电路或其他电路中。

    Delay-locked-loop (DLL) having symmetrical rising and falling clock edge
type delays
    10.
    发明授权
    Delay-locked-loop (DLL) having symmetrical rising and falling clock edge type delays 有权
    具有对称的上升和下降时钟边缘类型延迟的延迟锁定环(DLL)

    公开(公告)号:US6127866A

    公开(公告)日:2000-10-03

    申请号:US239487

    申请日:1999-01-28

    CPC分类号: H03L7/0814 G11C7/22 H03L7/095

    摘要: A circuit and method are provided wherein a receiver receives an input train of pulses. The circuit includes a delay-locked-loop coupled to an output of the receiver. The delay-locked-loop includes a pulse generator responsive to received input train of pulses produced at the output of the receiver for producing first pulses in response to the leading edges of the received input train of pulses and second pulses in response to the trailing edges of received input train of pulses. The leading edge of the first pulse has the same edge type as the leading edge of the second pulse (i.e., the leading edge of the first pulse and the leading edge of the second pulse are either both rising edge types or both falling edges types). The first pulses and the second pulses are combined into a composite input signal comprising the first and second pulses with the leading edge of the first pulse maintaining the same edge type. The delay-locked-loop also includes a variable delay line fed by the composite input signal for producing a composite output train of pulses comprising both the first train of pulses and the second train of pulses after a selected time delay provided by the delay line. The delay-locked-loop is responsive to one of the first train of pulses and the second train of pulses in the composite output train of pulses for selecting the time delay of the variable delay line so as to produce the composite output train of pulses with a predetermined phase relationship to the input train of pulses.

    摘要翻译: 提供一种电路和方法,其中接收器接收输入的脉冲序列。 电路包括耦合到接收器的输出的延迟锁定环路。 延迟锁定环包括响应于在接收器的输出处产生的接收到的输入脉冲序列的脉冲发生器,以响应于所接收的输入脉冲序列的前沿和响应于后沿的第二脉冲而产生第一脉冲 的接收输入脉冲序列。 第一脉冲的前沿具有与第二脉冲的前沿相同的边缘类型(即,第一脉冲的前沿和第二脉冲的前沿都是上升沿类型或两个下降沿类型) 。 第一脉冲和第二脉冲被组合成包括第一和第二脉冲的复合输入信号,其中第一脉冲的前沿保持相同的边缘类型。 延迟锁定环还包括由复合输入信号馈送的可变延迟线,用于在由延迟线提供的选定时间延迟之后产生包括第一脉冲串和第二脉冲串的两个脉冲的复合输出串。 延迟锁定回路响应于复合输出脉冲串中的第一脉冲序列和第二脉冲串中的一个,用于选择可变延迟线的时间延迟,以便产生具有 与输入的脉冲序列的预定相位关系。