专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07644378B2 Preconditioning for EDA cell library 有权
标题翻译： EDA细胞库的预处理
公开(公告)号：US07644378B2
公开(公告)日：2010-01-05
申请号：US10943662
申请日：2004-09-16
申请人： Xin Wang , Charles Chiang
发明人： Xin Wang , Charles Chiang
IPC分类号： G06F17/50 , H03K17/693
CPC分类号： G06F17/505 , G06F17/504
摘要： A characterized cell library for EDA tools includes one or more mathematical models for each cell, and one or more preconditioning functions (and/or inverse preconditioning functions) for each mathematical model. Each mathematical model represents a performance parameter (e.g., delay, power consumption, noise) or a preconditioned performance parameter of the cell. The preconditioning functions convert an operating parameter (e.g., input slew, output capacitance) associated with the performance parameter into a preconditioned input variable for the mathematical models. In doing so, the preconditioning functions allow for more accurate modeling of complex data relationships without increasing the complexity (e.g., order and number of coefficients) of the mathematical models. Also, because the cell library can be substantially similar to conventional polynomial-based cell libraries except for the inclusion of preconditioning functions, preconditioning does not significantly increase storage requirements and conventional EDA tools can be readily adapted to use the preconditioned cell library.
摘要翻译：用于EDA工具的特征化单元库包括用于每个单元的一个或多个数学模型，以及用于每个数学模型的一个或多个预处理函数（和/或反向预处理函数）。每个数学模型表示单元的性能参数（例如，延迟，功耗，噪声）或预处理的性能参数。预处理功能将与性能参数相关联的操作参数（例如，输入转换，输出电容）转换为用于数学模型的预条件输入变量。在这样做时，预处理功能允许复杂数据关系的更准确的建模，而不增加数学模型的复杂性（例如，系数的顺序和数量）。另外，由于除了包含预处理功能之外，细胞库可以基本上类似于常规的基于多项式的细胞库，所以预处理不会显着增加存储要求，并且常规EDA工具可以容易地适应于使用预处理细胞库。

2. 发明申请

US20130013276A1 Preconditioning For EDA Cell Library 有权
标题翻译： EDA细胞库的预处理
公开(公告)号：US20130013276A1
公开(公告)日：2013-01-10
申请号：US13619355
申请日：2012-09-14
申请人： Xin Wang , Charles Chiang
发明人： Xin Wang , Charles Chiang
IPC分类号： G06F17/50
CPC分类号： G06F17/505 , G06F17/504
摘要： A characterized cell library for EDA tools includes one or more mathematical models for each cell, and one or more preconditioning functions (and/or inverse preconditioning functions) for each mathematical model. Each mathematical model represents a performance parameter (e.g., delay, power consumption, noise) or a preconditioned performance parameter of the cell. The preconditioning functions convert an operating parameter (e.g., input slew, output capacitance) associated with the performance parameter into a preconditioned input variable for the mathematical models. In doing so, the preconditioning functions allow for more accurate modeling of complex data relationships without increasing the complexity (e.g., order and number of coefficients) of the mathematical models. Also, because the cell library can be substantially similar to conventional polynomial-based cell libraries except for the inclusion of preconditioning functions, preconditioning does not significantly increase storage requirements and conventional EDA tools can be readily adapted to use the preconditioned cell library.
摘要翻译：用于EDA工具的特征化单元库包括用于每个单元的一个或多个数学模型，以及用于每个数学模型的一个或多个预处理函数（和/或反向预处理函数）。每个数学模型表示单元的性能参数（例如，延迟，功耗，噪声）或预处理的性能参数。预处理功能将与性能参数相关联的操作参数（例如，输入转换，输出电容）转换为用于数学模型的预条件输入变量。在这样做时，预处理功能允许复杂数据关系的更准确的建模，而不增加数学模型的复杂性（例如，系数的顺序和数量）。而且，由于除了包括预处理功能之外，细胞库可以基本上类似于常规的基于多项式的细胞库，所以预处理不会显着增加存储要求，并且常规EDA工具可以容易地适应于使用预处理细胞库。

3. 发明申请

US20050114824A1 Method and apparatus for computing dummy feature density for Chemical-Mechanical Polishing 有权
标题翻译：用于计算化学机械抛光的虚拟特征密度的方法和装置
公开(公告)号：US20050114824A1
公开(公告)日：2005-05-26
申请号：US10997396
申请日：2004-11-24
申请人： Xin Wang , Charles Chiang , Jamil Kawa
发明人： Xin Wang , Charles Chiang , Jamil Kawa
IPC分类号： G06F17/50 , G06F19/00
CPC分类号： G06F17/5068 , G06F2217/12 , Y02P90/265
摘要： One embodiment of the present invention provides a system that computes dummy feature density for a CMP (Chemical-Mechanical Polishing) process. Note that the dummy feature density is used to add dummy features to a layout to reduce the post-CMP topography variation. During operation, the system discretizes a layout of an integrated circuit into a plurality of panels. Next, the system computes a feature density and a slack density for the plurality of panels. The system then computes a dummy feature density for the plurality of panels by, iteratively, (a) calculating an effective feature density for the plurality of panels using the feature density and a function that models the CMP process, (b) calculating a filling amount for a set of panels in the plurality of panels using a target feature density, the effective feature density, and the slack density, and (c) updating the feature density, the slack density, and the dummy feature density for the set of panels using the filling amount. In one embodiment of the present invention, the iterative process is guided by a variance-minimizing heuristic to efficiently select the set of panels and assign/remove dummy density to the set of panels to decrease the effective feature density variation.
摘要翻译：本发明的一个实施例提供了一种计算CMP（化学机械抛光）工艺的虚拟特征密度的系统。请注意，虚拟特征密度用于向布局添加虚拟特征以减少CMP后的拓扑变化。在操作期间，系统将集成电路的布局离散成多个面板。接下来，系统计算多个面板的特征密度和松弛密度。然后，系统通过迭代地计算多个面板的虚拟特征密度，（a）使用特征密度计算多个面板的有效特征密度，以及对CMP过程建模的功能，（b）计算填充量对于使用目标特征密度，有效特征密度和松弛密度的多个面板中的一组面板，以及（c）更新该组面板的特征密度，松弛密度和虚拟特征密度，使用填充量。在本发明的一个实施例中，迭代过程由方差最小化启发式引导，以有效地选择面板集合并且将虚空密度分配/去除到该组面板以减小有效特征密度变化。

4. 发明申请

US20100070938A1 Preconditioning For EDA Cell Library 失效
标题翻译： EDA细胞库的预处理
公开(公告)号：US20100070938A1
公开(公告)日：2010-03-18
申请号：US12623027
申请日：2009-11-20
申请人： Xin Wang , Charles Chiang
发明人： Xin Wang , Charles Chiang
IPC分类号： G06F17/50
CPC分类号： G06F17/505 , G06F17/504
摘要： A characterized cell library for EDA tools includes one or more mathematical models for each cell, and one or more preconditioning functions (and/or inverse preconditioning functions) for each mathematical model. Each mathematical model represents a performance parameter (e.g., delay, power consumption, noise) or a preconditioned performance parameter of the cell. The preconditioning functions convert an operating parameter (e.g., input slew, output capacitance) associated with the performance parameter into a preconditioned input variable for the mathematical models. In doing so, the preconditioning functions allow for more accurate modeling of complex data relationships without increasing the complexity (e.g., order and number of coefficients) of the mathematical models. Also, because the cell library can be substantially similar to conventional polynomial-based cell libraries except for the inclusion of preconditioning functions, preconditioning does not significantly increase storage requirements and conventional EDA tools can be readily adapted to use the preconditioned cell library.
摘要翻译：用于EDA工具的特征化单元库包括用于每个单元的一个或多个数学模型，以及用于每个数学模型的一个或多个预处理函数（和/或反向预处理函数）。每个数学模型表示单元的性能参数（例如，延迟，功耗，噪声）或预处理的性能参数。预处理功能将与性能参数相关联的操作参数（例如，输入转换，输出电容）转换为用于数学模型的预条件输入变量。在这样做时，预处理功能允许复杂数据关系的更准确的建模，而不增加数学模型的复杂性（例如，系数的顺序和数量）。另外，由于除了包含预处理功能之外，细胞库可以基本上类似于常规的基于多项式的细胞库，所以预处理不会显着增加存储要求，并且常规EDA工具可以容易地适应于使用预处理细胞库。

5. 发明申请

US20060057594A1 Preconditioning for EDA cell library 有权
标题翻译： EDA细胞库的预处理
公开(公告)号：US20060057594A1
公开(公告)日：2006-03-16
申请号：US10943662
申请日：2004-09-16
申请人： Xin Wang , Charles Chiang
发明人： Xin Wang , Charles Chiang
IPC分类号： C40B30/02 , C40B40/08
CPC分类号： G06F17/505 , G06F17/504
摘要： A characterized cell library for EDA tools includes one or more mathematical models for each cell, and one or more preconditioning functions (and/or inverse preconditioning functions) for each mathematical model. Each mathematical model represents a performance parameter (e.g., delay, power consumption, noise) or a preconditioned performance parameter of the cell. The preconditioning functions convert an operating parameter (e.g., input slew, output capacitance) associated with the performance parameter into a preconditioned input variable for the mathematical models. In doing so, the preconditioning functions allow for more accurate modeling of complex data relationships without increasing the complexity (e.g., order and number of coefficients) of the mathematical models. Also, because the cell library can be substantially similar to conventional polynomial-based cell libraries except for the inclusion of preconditioning functions, preconditioning does not significantly increase storage requirements and conventional EDA tools can be readily adapted to use the preconditioned cell library.
摘要翻译：用于EDA工具的特征化单元库包括用于每个单元的一个或多个数学模型，以及用于每个数学模型的一个或多个预处理函数（和/或反向预处理函数）。每个数学模型表示单元的性能参数（例如，延迟，功耗，噪声）或预处理的性能参数。预处理功能将与性能参数相关联的操作参数（例如，输入转换，输出电容）转换为用于数学模型的预条件输入变量。在这样做时，预处理功能允许复杂数据关系的更准确的建模，而不增加数学模型的复杂性（例如，系数的顺序和数量）。另外，由于除了包含预处理功能之外，细胞库可以基本上类似于常规的基于多项式的细胞库，所以预处理不会显着增加存储要求，并且常规EDA工具可以容易地适应于使用预处理细胞库。

6. 发明申请

US20050241971A1 Transport and display case for a golf set 审中-公开
标题翻译：高尔夫球包的运输和展示柜
公开(公告)号：US20050241971A1
公开(公告)日：2005-11-03
申请号：US10837456
申请日：2004-04-29
申请人： Frank Zou , Charles Chiang
发明人： Frank Zou , Charles Chiang
IPC分类号： A47F5/11 , A63B53/00 , A63B55/00 , A63B71/00 , B65D25/54
CPC分类号： A47F5/112 , A63B55/406 , A63B71/0045
摘要： A transport and display case for a golf set. The case has a front panel, a pair of side walls, a rear panel, a top and a bottom. The top is transparent so that it allows maximum amount of light into the case to showcase the golf set within. The front panel has two portions: the upper portion is transparent to allow light into the case and allow consumers to view the golf set, while the lower portion is opaque. Both side walls are opaque. The bottom is locked, but can provide easy access by consumers after they purchase the golf set from store. The case is constructed using a cardboard blank with predefined fold lines and cut-out lines. The cut-lines define portions of the case for attaching the transparent covers such as the lid and upper portion. The case can be “sealed” after the golf set is placed in the case. However, to ensure that the golf set, i.e. the golf bag and golf clubs, is secured during transport from the supplier to the store, the golf clubs are secured to a stabilizer structure through wire ties, prior to the case is “sealed”. The stabilizer, which may be a piece of cardboard, is engaged to the golf bag at its dividers. By securing the clubs to the stabilizer, consumers are not prevented from viewing the club heads from close distance, through the transparent part of the display case.
摘要翻译：高尔夫球的运输和展示柜。该外壳具有前面板，一对侧壁，后面板，顶部和底部。顶部是透明的，因此它允许最大量的光线展示在其中的高尔夫球。前面板具有两部分：上部是透明的，以允许光进入外壳，并允许消费者观看高尔夫球，而下部是不透明的。两个侧壁都是不透明的。底部被锁定，但是可以在消费者从商店购买高尔夫球后轻松访问。这种情况使用具有预定折叠线和切口线的纸板坯料构造。切割线限定用于附接透明盖（例如盖和上部）的壳体的部分。在将高尔夫球套放置在外壳中之后，该情况可以“密封”。然而，为了确保高尔夫球包，即高尔夫球袋和高尔夫球杆在从供应商运送到商店期间被固定，高尔夫球杆在情况被“密封”之前通过扎带固定到稳定器结构上。可以是一块纸板的稳定器在其分隔件处与高尔夫球袋接合。通过将球杆固定到稳定器上，消费者不会通过显示器壳体的透明部分从近距离观察球杆头。

7. 发明授权

US07289933B2 Simulating topography of a conductive material in a semiconductor wafer 有权
标题翻译：模拟半导体晶片中导电材料的形貌
公开(公告)号：US07289933B2
公开(公告)日：2007-10-30
申请号：US11267776
申请日：2005-11-04
申请人： Jianfeng Luo , Qing Su , Charles Chiang
发明人： Jianfeng Luo , Qing Su , Charles Chiang
IPC分类号： G01B11/24 , H01L21/31
CPC分类号： G06F17/5009 , G06F2217/74
摘要： A dimension of a conductive material in a semiconductor wafer is determined by a computer that treats as identical (a) volume of the conductive material which is proportional to an effective surface area of sidewalls of an insulative trench and (b) volume of the conductive material derived from geometry based on a predetermined amount by which width of a conductive trench (if present) in the conductive material differs from width of the insulative trench. In some embodiments, the computer computes the effective surface area as the product of trench depth and a layout parameter, either or both of which may be partially or wholly empirically determined from a test wafer containing several topographies. The computer computes the dimension assuming one topography and validates the assumption if a predetermined condition is met. If the condition is not met, the computer re-computes the dimension, assuming another topography.
摘要翻译：半导体晶片中的导电材料的尺寸由计算机确定，该计算机将与导电材料的侧壁的有效表面积成比例的导电材料的体积相当（a），并且（b）导电材料的体积基于导电材料中的导电沟槽（如果存在）的宽度与绝缘沟槽的宽度不同的预定量的几何形状。在一些实施例中，计算机计算有效表面积作为沟槽深度和布局参数的乘积，其中的一个或两个可以从包含几个拓扑图的测试晶片部分或全部经验地确定。如果满足预定条件，计算机将计算假设一个地形的尺寸并验证该假设。如果不符合条件，计算机会重新计算尺寸，假设其他地形。

8. 发明申请

US20050230301A1 Fluid filter 失效
标题翻译：流体过滤器
公开(公告)号：US20050230301A1
公开(公告)日：2005-10-20
申请号：US11102457
申请日：2005-04-08
申请人： Charles Chiang
发明人： Charles Chiang
IPC分类号： B01D17/00 , B01D24/38 , C02F1/40
CPC分类号： B01D17/00 , B01D17/0211 , B01D17/0214 , B01D17/10 , C02F1/40 , C02F2101/32 , C02F2103/007 , Y10S210/923
摘要： A fluid filter, which is adapted for separating a less dense fluid floating on a high dense fluid, includes at least a fluid filtering arrangement including a floating wing adapted for floating on the less dense fluid and at least a fluid outlet formed on the floating wing, and a container body, which is extended from the floating wing, having a fluid collecting cavity communicating with the fluid outlet, wherein the fluid outlet is formed at a position above the fluid collecting cavity. Therefore, when a downward force is applied on the floating wing until the fluid outlet is slightly positioned below a surface level of the less dense fluid, the less dense fluid is allowed to flow into the fluid collecting cavity through the fluid outlet by gravity.
摘要翻译：流体过滤器，其适于分离漂浮在高致密流体上的较不致密的流体，包括至少一个流体过滤装置，其包括浮动翼片，其适用于漂浮在较不密集的流体上，并且至少在浮翼上形成流体出口以及从浮翼延伸的容器主体，具有与流体出口连通的流体收集腔，其中流体出口形成在流体收集腔上方的位置。因此，当在浮翼上施加向下的力直到流体出口略微定位在较不致密流体的表面水平之下时，较不致密的流体通过重力通过流体出口流入流体收集腔。

9. 发明申请

US20070192751A1 Method and apparatus to reduce random yield loss 有权
标题翻译：减少随机产量损失的方法和装置
公开(公告)号：US20070192751A1
公开(公告)日：2007-08-16
申请号：US11725007
申请日：2007-03-16
申请人： Subarnarekha Sinha , Qing Su , Charles Chiang
发明人： Subarnarekha Sinha , Qing Su , Charles Chiang
IPC分类号： G06F17/50
CPC分类号： G06F17/5068 , G06F2217/12 , Y02P90/265
摘要： One embodiment of the present invention provides a system that reduces random yield loss. During operation, the system can receive a design layout. The system may also receive weighting factors that are associated with the particle densities in the metal regions and the empty regions. Next, the system can determine local critical-area-ratios and optimization potentials for a set of wire-segments. The system can then select a wire segment, and compare its local critical-area-ratio with a global critical-area-ratio. Next, the system can use the result of the comparison to determine a layout optimization. The system can then apply the layout optimization to the wire segment to obtain an improved layout.
摘要翻译：本发明的一个实施方案提供了减少随机产率损失的系统。在操作过程中，系统可以接收设计布局。系统还可以接收与金属区域和空区域中的颗粒密度相关联的加权因子。接下来，系统可以确定一组线段的局部临界面积比和优化电位。然后，系统可以选择一个线段，并将其局部临界面积比与全局临界面积比进行比较。接下来，系统可以使用比较结果来确定布局优化。然后，系统可以将布局优化应用于线段以获得改进的布局。

10. 发明申请

US20070118320A1 Simulating topography of a conductive material in a semiconductor wafer 有权
公开(公告)号：US20070118320A1
公开(公告)日：2007-05-24
申请号：US11267776
申请日：2005-11-04
申请人： Jianfeng Luo , Qing Su , Charles Chiang
发明人： Jianfeng Luo , Qing Su , Charles Chiang
IPC分类号： G01R27/28
CPC分类号： G06F17/5009 , G06F2217/74
摘要： A dimension of a conductive material in a semiconductor wafer is determined by a computer that treats as identical (a) volume of the conductive material which is proportional to an effective surface area of sidewalls of an insulative trench and (b) volume of the conductive material derived from geometry based on a predetermined amount by which width of a conductive trench (if present) in the conductive material differs from width of the insulative trench. In some embodiments, the computer computes the effective surface area as the product of trench depth and a layout parameter, either or both of which may be partially or wholly empirically determined from a test wafer containing several topographies. The computer computes the dimension assuming one topography and validates the assumption if a predetermined condition is met. If the condition is not met, the computer re-computes the dimension, assuming another topography.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式