公开(公告)号：US07263677B1

公开(公告)日：2007-08-28

申请号：US10335246

申请日：2002-12-31

申请人： Steven Teig ,  Akira Fujimura

发明人： Steven Teig ,  Akira Fujimura

IPC分类号： G06F17/50

CPC分类号： G06F17/5068

摘要： A system for creating efficient vias between metal layers in semiconductor designs that employ diagonal wiring is disclosed. The system combines advantages of both octagonal shaped vias and square shaped vias. Specifically, octagonal shaped vias are ideal for integrated circuit layouts that contain diagonal wiring since the diagonal wiring may be placed closer to the center the via due to the bevel corners. However, octagonal vias are difficult to manufacture. Square vias have been traditionally used within integrated circuits and the techniques to manufacture square vias are well-known. Since the final manufactured output of an ideal square via is similar to the final output of an ideal octagonal via, one system that may be employed is to design an integrated circuit with octagonal vias and then replace those octagonal shaped vias with square vias just before manufacturing. The replacement square vias must be chose to produce an output shape that is very similar to the output of the ideal octagonal via.

摘要翻译： 公开了一种用于在使用对角线布线的半导体设计中在金属层之间形成有效通孔的系统。 该系统结合了八角形通孔和方形通孔的优点。 具体来说，八角形通孔对于包含对角布线的集成电路布局是理想的，因为由于斜角可能将对角布线放置得更靠近通孔的中心。 然而，八角形通孔难以制造。 传统上在集成电路中使用方形通孔，并且制造方形通孔的技术是众所周知的。 由于理想正方形通孔的最终制造输出类似于理想八边形通孔的最终输出，所以可以使用的一个系统是设计具有八边形通孔的集成电路，然后在制造之前用方形通孔替换那些八角形通孔 。 必须选择替换正方形通孔以产生非常类似于理想八边形通孔输出的输出形状。

公开(公告)号：US20070136707A1

公开(公告)日：2007-06-14

申请号：US11548655

申请日：2006-10-11

申请人： Steven Teig ,  Raghu Chalasani ,  Akira Fujimura

发明人： Steven Teig ,  Raghu Chalasani ,  Akira Fujimura

IPC分类号： G06F17/50

CPC分类号： G06F17/5077 ,  G06F1/10 ,  G06F2217/62

摘要： The present invention introduces methods, systems, and architectures for routing clock signals in an integrated circuit layout. The introduced clock signal clock signal structures are rendered with non Manhattan routing. In a first embodiment, the traditional recursive H clock signal structure is rendered after transforming the coordinates system such that a rotated recursive H clock signal structure is rendered. In another embodiment, a recursive Y structure is used to create a clock signal structure. The recursive Y structure may also be implemented in a rotated alignment. For clock signal redundancy, non Manhattan wiring may be used to create a clock signal mesh network.

摘要翻译： 本发明介绍了用于在集成电路布局中路由时钟信号的方法，系统和架构。 引入的时钟信号时钟信号结构以非曼哈顿路由呈现。 在第一实施例中，传统的递归H时钟信号结构在变换坐标系之后呈现，从而呈现旋转的递归H时钟信号结构。 在另一个实施例中，使用递归Y结构来创建时钟信号结构。 递归Y结构也可以以旋转的对准来实现。 对于时钟信号冗余，可以使用非曼哈顿布线来创建时钟信号网状网络。

公开(公告)号：US20060265679A1

公开(公告)日：2006-11-23

申请号：US11419495

申请日：2006-05-20

申请人： Louis Scheffer ,  Akira Fujimura

发明人： Louis Scheffer ,  Akira Fujimura

IPC分类号： G06F17/50 ,  G06F19/00

CPC分类号： G06F17/5068 ,  G03F7/70091 ,  G03F7/70125 ,  G03F7/70425 ,  G05B2219/35028 ,  G06F17/5081 ,  G06F2217/12 ,  Y02P90/265

摘要： Some embodiments of the invention provide a manufacturing aware process for designing an integrated circuit (“IC”) layout. The process receives a manufacturing configuration that specifies a set of manufacturing settings for a set of machines to be used to manufacture an IC based on the IC layout. The process defines a set of design rules based on the specified manufacturing configuration. The process uses the set of design rules to design the IC layout. Some embodiments of the invention provide a design aware process for manufacturing an integrated circuit (“IC”). The process receives an IC design with an associated set of design properties. The process specifies a manufacturing configuration that specifies a set of manufacturing settings for a set of machines to be used to manufacture the IC, where the specified set of manufacturing settings are based on the set of design properties. The process manufactures the IC based on the manufacturing settings.

摘要翻译： 本发明的一些实施例提供了一种用于设计集成电路（“IC”）布局的制造感知过程。 该过程接收制造配置，其指定用于基于IC布局来制造IC的一组机器的一组制造设置。 该过程基于指定的制造配置定义一组设计规则。 该过程使用一组设计规则来设计IC布局。 本发明的一些实施例提供了用于制造集成电路（“IC”）的设计感知过程。 该过程接收具有相关联的一组设计属性的IC设计。 该过程指定制造配置，其指定用于制造IC的一组机器的一组制造设置，其中指定的一组制造设置基于该组设计属性。 该过程基于制造设置制造IC。

公开(公告)号：US06895569B1

公开(公告)日：2005-05-17

申请号：US10066102

申请日：2002-01-31

申请人： Steven Teig ,  Akira Fujimura ,  Andrew Caldwell

发明人： Steven Teig ,  Akira Fujimura ,  Andrew Caldwell

IPC分类号： G06F9/45 ,  G06F17/50

CPC分类号： G06F17/5068

摘要： Some embodiments of the invention provide vias that are not in shape of quadrilaterals. In some embodiments, some or all vias are in shape of non-quadrilateral polygons, such as octagons and hexagons. In some embodiments, some or all vias have a circular shape. Some embodiments provide a first set of vias that have a diamond shape and a second set of vias that have a rectangular shape. In some embodiments, a via can also be formed by a diamond contact and a rectangular contact. The diamond contact has four sides. In the embodiments described below, all four sides of a diamond via contact have equal sides. However, in other embodiments, a via contact can be in shape of a diamond with a pair of sides that are longer than the other pair of sides. Similarly, in the embodiments described below, the rectangular via contacts are squares with four equal sides. However, in other embodiments, the length and width of a rectangular via contact can differ. Some embodiments of the invention provide interconnect lines that have non-rectangular ends. In some embodiments, the interconnect-line ends are partial octagons, hexagons, and/or circles. Also, some embodiments provide Steiner points that are not rectangular. In some embodiments, the Steiner points are octagonal, hexagonal, or circles.

摘要翻译： 本发明的一些实施例提供不具有四边形形状的通孔。 在一些实施例中，一些或所有通孔的形状为非四边形多边形，例如八边形和六边形。 在一些实施例中，一些或所有通孔具有圆形形状。 一些实施例提供具有菱形形状的第一组通孔和具有矩形形状的第二组通孔。 在一些实施例中，也可以通过金刚石触点和矩形触点形成通孔。 钻石接触有四面。 在下面描述的实施例中，钻石经过接触的所有四个侧面具有相等的边。 然而，在其他实施例中，通孔接触可以是具有比另一对侧长的一对侧面的菱形的形状。 类似地，在下面描述的实施例中，矩形通孔触点是具有四个相等边的正方形。 然而，在其他实施例中，矩形通孔接触件的长度和宽度可以不同。 本发明的一些实施例提供具有非矩形端部的互连线。 在一些实施例中，互连线端部是部分八边形，六边形和/或圆形。 而且，一些实施例提供了不是矩形的Steiner点。 在一些实施例中，Steiner点是八边形，六边形或圆形。

公开(公告)号：US06858928B1

公开(公告)日：2005-02-22

申请号：US09733104

申请日：2000-12-07

申请人： Steven Teig ,  David Overhauser ,  Akira Fujimura

发明人： Steven Teig ,  David Overhauser ,  Akira Fujimura

IPC分类号： H01L23/528 ,  H01L23/12 ,  G06L9/45

CPC分类号： H01L23/528 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated circuit has a metal layer that includes conductors to provide interconnectivity for components of the integrated circuit chip. The metal layer is divided into at least two sections, such that a first section has a preferred direction and the second section has a preferred wiring direction that is different from the first preferred direction. The first and second preferred directions on a single metal layer may consist of any direction. The metal layer may be divided into more than two sections, wherein each section has a preferred wiring direction. Wiring geometries for multi-level metal layers are also disclosed.

摘要翻译： 集成电路具有包括为集成电路芯片的组件提供互连的导体的金属层。 金属层被分成至少两个部分，使得第一部分具有优选的方向，并且第二部分具有不同于第一优选方向的优选的布线方向。 单个金属层上的第一和第二优选方向可由任何方向组成。 金属层可以被分成多于两个部分，其中每个部分具有优选的布线方向。 还公开了多层金属层的接线几何形状。

公开(公告)号：US4753208A

公开(公告)日：1988-06-28

申请号：US932490

申请日：1986-11-20

申请人： Akihiro Yamato ,  Akira Fujimura

发明人： Akihiro Yamato ,  Akira Fujimura

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02M51/00

CPC分类号： F02D41/1484 ,  F02D41/1474

摘要： A method for controlling air-fuel ratio of the mixture to be supplied to the engine detects whether or not the amount of the fuel to be supplied to the engine is greater than a reference amount. A feedback control in which the air/fuel ratio is corrected according to an oxygen concentration in the exhaust gas is performed when the amount of the fuel to be supplied to the engine is equal to or smaller than the reference level, while an open loop control in which the air/fuel ratio of the mixture is determined irrespective of the oxygen concentration is performed if an operational state of the engine in which the amount of the fuel to be supplied to the engine is greater than the reference level has continued for more than a predetermined time period.

摘要翻译： 用于控制供给到发动机的混合物的空燃比的方法，检测供给到发动机的燃料的量是否大于基准量。 当提供给发动机的燃料量等于或小于参考水平时，执行其中根据排气中的氧气浓度校正空气/燃料比的反馈控制，同时开环控制 如果其中供应给发动机的燃料量大于参考水平的发动机的操作状态继续进行，则其中确定混合物的空气/燃料比，而不考虑氧气浓度。 预定时间段。

公开(公告)号：US4569318A

公开(公告)日：1986-02-11

申请号：US635255

申请日：1984-07-27

申请人： Akira Fujimura ,  Norio Tomobe

发明人： Akira Fujimura ,  Norio Tomobe

IPC分类号： F02D41/14 ,  F02D41/00 ,  F02M23/04 ,  F02M23/08 ,  F02M25/07

CPC分类号： F02M23/08 ,  F02M23/04 ,  F02M26/57 ,  F02M2026/004 ,  Y02T10/146

摘要： A secondary intake air supply system for internal combustion engines having two vacuum operated air control valves in parallel in a single secondary air supply line to the intake manifold. One of the air control valves is controlled by a vacuum control valve to open and close gradually to avoid abrupt changes in the air fuel mixture to the engine, upon changes in vehicle operation. Electromagnetic valves operated by a control circuit responsive to both an exhaust gas sensor and a throttle position also control the secondary air supplied through the two air control valves.

摘要翻译： 一种用于内燃机的二次进气供应系统，其具有两个真空操作空气控制阀，在与进气歧管相连的单个二次空气供应管路中并联。 一个空气控制阀由真空控制阀控制，逐渐打开和关闭，以避免在车辆操作变化时空气燃料混合物向发动机的突然变化。 由控制电路操作的电磁阀既响应于排气传感器和节流位置，也可控制通过两个空气控制阀供应的二次空气。

公开(公告)号：US4495922A

公开(公告)日：1985-01-29

申请号：US576833

申请日：1984-02-03

申请人： Akira Fujimura ,  Shunzaburo Ozaki

发明人： Akira Fujimura ,  Shunzaburo Ozaki

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02M23/04

CPC分类号： F02M23/04 ,  F02D41/0002 ,  F02D41/1489 ,  Y02T10/146 ,  Y02T10/42

摘要： An air/fuel ratio control system for an internal combustion engine having an air induction system equipped with a secondary air passage communicated with an air intake passage and an oxygen sensor disposed in an exhaust system of the engine, the flow of the secondary air through the secondary air passage being controlled in accordance with a feedback control signal based on an output signal of the oxygen sensor, comprises a temperature sensor for sensing the temperature of the intake air supplied to the engine, and a control means for preventing the supply of the secondary air when the intake air temperature detected by the temperature sensor is below a predetermined level. The start timing of the feedback air/fuel ratio control is thus determined in accordance with the intake air temperature, to alleviate the drawbacks of the conventional air/fuel ratio control system in which the start timing of the feedback control is determined in accordance with the engine coolant temperature.

摘要翻译： 一种用于内燃机的空气/燃料比控制系统，其具有配备有与进气通道连通的二次空气通道的空气感应系统和设置在发动机的排气系统中的氧传感器，二次空气通过 二次空气通道根据氧传感器的输出信号根据反馈控制信号进行控制，包括用于感测供给发动机的进气温度的温度传感器，以及用于防止二次风供给的控制装置 当由温度传感器检测到的进气温度低于预定水平时的空气。 因此，根据进气温度来确定反馈空气/燃料比控制的开始时间，以减轻传统的空燃比控制系统的缺点，其中反馈控制的开始定时根据 发动机冷却液温度。

公开(公告)号：US4436710A

公开(公告)日：1984-03-13

申请号：US405726

申请日：1982-08-06

申请人： Naomi Miyazaki ,  Akira Fujimura

发明人： Naomi Miyazaki ,  Akira Fujimura

IPC分类号： C01B7/03 ,  C01D5/02 ,  C01B7/01

CPC分类号： C01D5/02

摘要： This improved method comprises a first dry step of reacting concentrated sulfuric acid and potassium sulfate with potassium chloride at about 300.degree. C. in a slurried state to obtain a mixed slurried salts of K.sub.n H.sub.2-n SO.sub.4 (n being 1.3 to 1.4); a second wet step of dissolving said mixed salts and additional raw potassium chloride in water, the amount of water being limited to some extent, heating the solution to 60.degree. to 90.degree. C. in order to take place a wet reaction, and cooling the solution to 50.degree. to 20.degree. C. to deposit potassium sulfate crystals from the solution in order to obtain the final product and filtrate; and a third circulating step of evaporating the filtrate to obtain a cake of mixed salts of acid potassium sulfate and potassium chloride, and returning circulatingly the cake to the first stage as part of raw materials.

摘要翻译： 这种改进的方法包括在约300℃以浓缩状态使浓硫酸和硫酸钾与氯化钾反应的第一干燥步骤，以获得KnH2-nSO 4（n为1.3至1.4）的混合浆状盐。 将所述混合盐和另外的原料氯化钾溶解在水中的第二个湿步骤，水的量受到一定程度的限制，将溶液加热至60℃至90℃以进行湿反应，并冷却 溶液至50〜20℃，从溶液中沉淀出硫酸钾晶体，得到最终产物和滤液; 以及第三循环步骤，蒸发滤液以获得酸式硫酸钾和氯化钾的混合盐的滤饼，并将滤饼循环返回到作为原料的一部分的第一阶段。

公开(公告)号：US4429676A

公开(公告)日：1984-02-07

申请号：US396276

申请日：1982-07-08

申请人： Osamu Gotoh ,  Yutaka Otobe ,  Michio Kawamoto ,  Akira Fujimura

发明人： Osamu Gotoh ,  Yutaka Otobe ,  Michio Kawamoto ,  Akira Fujimura

IPC分类号： F02D21/08 ,  F02D37/00 ,  F02M7/04 ,  F02M7/133 ,  F02M25/07 ,  F02M25/06

CPC分类号： F02M7/133 ,  F02M26/53 ,  F02M26/57 ,  F02M2026/004

摘要： An internal combustion engine for a vehicle has an exhaust gas recirculation system for returning exhaust gases to the engine intake passage. The carburetion system for the engine includes a fuel enrichment valve. A control suction air line from the intake passage operates a regulating valve which controls the exhaust gas recirculation valve as well as the fuel enrichment valve. The flow resistance through the control suction air line is controlled by a prescribed control factor, which factor may depend upon the engine temperature alone or supplemented by engine speed, engine load (suction pressure), or atmospheric pressure.

摘要翻译： 用于车辆的内燃机具有用于将废气返回到发动机进气通道的排气再循环系统。 发动机的化油系统包括燃料浓缩阀。 来自进气通道的控制吸入空气管路操作调节阀，该调节阀控制排气再循环阀以及燃料浓缩阀。 通过控制吸入空气管线的流动阻力由规定的控制系数控制，该因素可以单独地依赖于发动机温度或者由发动机转速，发动机负荷（吸入压力）或大气压力补充。