公开(公告)号：US07346877B2

公开(公告)日：2008-03-18

申请号：US11408217

申请日：2006-04-20

申请人： Christopher J. Berry ,  Howard H. Smith ,  Richard P. Underwood ,  Alan P. Wagstaff

发明人： Christopher J. Berry ,  Howard H. Smith ,  Richard P. Underwood ,  Alan P. Wagstaff

IPC分类号： G06F17/50

CPC分类号： G06F17/5036

摘要： This method for decoupling capacitance analysis improves upon existing techniques to attempt to give a more accurate representation of the power supply fluctuations on a chip while keeping runtime comparable. This method employs the following techniques; a) a method for descending through hierarchy and dividing the design into a variable sized grid; b) an algorithm to determine which grid locations of a design don't have enough decoupling capacitors for all of the devices in that grid location; c) an algorithm to determine which grid locations are subject to harmful neighboring effects; and d) a method to display the results of the calculations in a graphical manor to allow easy identification of problem areas.

摘要翻译： 用于去耦电容分析的这种方法改进了现有技术，以试图给出对芯片上的电源波动的更准确的表示，同时保持运行时可比性。 该方法采用以下技术; a）通过层级降级并将设计划分为可变尺寸网格的方法; b）确定设计的哪些网格位置对于该网格位置中的所有设备没有足够的去耦电容器的算法; c）确定哪些网格位置受到有害的相邻影响的算法; 以及d）以图形方式显示计算结果的方法，以便容易地识别问题区域。

公开(公告)号：US07269806B2

公开(公告)日：2007-09-11

申请号：US11408228

申请日：2006-04-20

申请人： Christopher J. Berry ,  Howard H. Smith ,  Richard P. Underwood ,  Alan P. Wagstaff

发明人： Christopher J. Berry ,  Howard H. Smith ,  Richard P. Underwood ,  Alan P. Wagstaff

IPC分类号： G06F17/50

CPC分类号： G06F17/5036

摘要： This method for decoupling capacitance analysis improves upon existing techniques to attempt to give a more accurate representation of the power supply fluctuations on a chip while keeping runtime comparable. This method employs the following techniques; a) a method for descending through hierarchy and dividing the design into a variable sized grid; b) an algorithm to determine which grid locations of a design don't have enough decoupling capacitors for all of the devices in that grid location; c) an algorithm to determine which grid locations are subject to harmful neighboring effects; and d) a method to display the results of the calculations in a graphical manor to allow easy identification of problem areas.

摘要翻译： 用于去耦电容分析的这种方法改进了现有技术，以试图给出对芯片上的电源波动的更准确的表示，同时保持运行时可比性。 该方法采用以下技术; a）通过层级降级并将设计划分为可变尺寸网格的方法; b）确定设计的哪些网格位置对于该网格位置中的所有设备没有足够的去耦电容器的算法; c）确定哪些网格位置受到有害的相邻影响的算法; 以及d）以图形方式显示计算结果的方法，以便容易地识别问题区域。

公开(公告)号：US07086026B2

公开(公告)日：2006-08-01

申请号：US10436393

申请日：2003-05-12

申请人： Christopher J. Berry ,  Howard H. Smith ,  Richard P. Underwood ,  Alan P. Wagstaff

发明人： Christopher J. Berry ,  Howard H. Smith ,  Richard P. Underwood ,  Alan P. Wagstaff

IPC分类号： G06F17/50

CPC分类号： G06F17/5036

摘要： This method for decoupling capacitance analysis improves upon existing techniques to attempt to give a more accurate representation of the power supply fluctuations on a chip while keeping runtime comparable. This method employs the following techniques: 1. A method for descending through hierarchy and dividing the design into a variable sized grid. 2. An algorithm to determine which grid locations of a design don't have enough decoupling capacitors for all of the devices in that grid location. 3. An algorithm to determine which grid locations are subject to harmful neighboring effects. 4. A method to display the results of the calculations in a graphical manor to allow easy identification of problem areas.

摘要翻译： 用于去耦电容分析的这种方法改进了现有技术，以试图给出对芯片上的电源波动的更准确的表示，同时保持运行时可比性。 该方法采用以下技术：1.一种通过层级降级并将设计划分为可变尺寸网格的方法。 2.一种用于确定设计的哪些网格位置对于该网格位置中的所有设备没有足够的去耦电容的算法。 3.确定哪些网格位置受到有害的相邻影响的算法。 4.以图形方式显示计算结果的方法，以便轻松识别问题区域。

公开(公告)号：US5530168A

公开(公告)日：1996-06-25

申请号：US317053

申请日：1994-10-03

申请人： Richard P. Underwood ,  Bernard A. Toseland ,  Thomas A. Dahl ,  Janet F. Hugo

发明人： Richard P. Underwood ,  Bernard A. Toseland ,  Thomas A. Dahl ,  Janet F. Hugo

IPC分类号： C07C29/154 ,  C07C27/20

CPC分类号： C07C29/154

摘要： A process is set forth for the synthesis of a C.sub.2 + aliphatic alcohol from hydrogen and carbon oxides in the presence of a copper-based catalyst which has been impregnated with an alkali metal compound. The process differs from the prior art in that the catalyst is impregnated with the alkali metal compound in the same slurry reactor which is used for reacting the hydrogen and carbon oxides. By contrast, in the prior art C.sub.2 + aliphatic alcohol synthesis, impregnation of the copper-based catalyst with the alkali metal compound is accomplished by a separate step in a separate vessel. By eliminating this separate step, the present invention realizes a savings in processing and equipment costs.

摘要翻译： 阐述了在浸渍有碱金属化合物的铜基催化剂存在下，从氢和碳氧化物合成C2 +脂族醇的方法。 该方法与现有技术的不同之处在于，催化剂在用于使氢和碳氧化物反应的同一浆料反应器中用碱金属化合物浸渍。 相比之下，在现有技术的C2 +脂族醇合成中，用碱金属化合物浸渍铜基催化剂是通过分离的容器中的单独步骤完成的。 通过消除这个单独的步骤，本发明实现了处理和设备成本的节省。