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Autorouter
In electronic design, wire routing, commonly called simply routing, is a step in the design of printed circuit boards (PCBs) and integrated circuits (ICs). It builds on a preceding step, called placement, which determines the location of each active element of an IC or component on a PCB. After placement, the routing step adds wires needed to properly connect the placed components while obeying all design rules for the IC. Together, the placement and routing steps of IC design are known as place and route. The task of all routers is the same. They are given some pre-existing polygons consisting of pins (also called terminals) on cells, and optionally some pre-existing wiring called preroutes. Each of these polygons are associated with a net, usually by name or number. The primary task of the router is to create geometries such that all terminals assigned to the same net are connected, no terminals assigned to different nets are connected, and all design rules are obeyed. A rou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FreeStyle Router
TopoR (''Topo''logical ''R''outer) is an Electronic design automation, EDA program developed and maintained by the Russian company Eremex. It is dedicated to laying out a printed circuit board (PCB). The current version is 6.3.17875 as of 2017-09-20. It features a powerful autorouter and a set of tools intended to reduce the amount of effort needed for manual routing of a PCB. The most recognizable feature of TopoR is the absence of preferred routing directions, which results in unusual looking PCBs. History Work on a flexible topological router began in 1988, when 1996 saw the release of the first version of a topological router that actually came to be used by industrial enterprises. In 2002, the FreeStyle Router (FSR) by ''Диал Инжиниринг'' ("Dial Engineering") ran under DOS and successfully routed dual-layer boards, interfacing with P-CAD. This early router showed the advantages of an innovative approach to routing and high efficiency of the models, algori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allegro PCB Router
Specctra is a commercial PCB auto-router originally developed by John F. Cooper and David Chyan of Cooper & Chyan Technology, Inc. (CCT) in 1989. The company and product were taken over by Cadence Design Systems in May 1997. Since its integration into Cadence's Allegro PCB Editor, the name of the router is Allegro PCB Router. The latest version is 17.4 - 22.1 (October 20 2022). Specctra routes boards by presenting graphical data using a "shape-based" technology which represents graphical objects not as a set of points-coordinates, but more compact. This increases the efficiency of routing printed circuit boards with a high density of components, provides automatic routing of the same chain of tracks of different widths and more. Specctra uses adaptive algorithms implemented in multiple trace runs. The routing is carried out in three stages: # preview routing # autoroute # additional processing of autoroute results On the first pass, the connection of all conductors is perfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specctra
Specctra is a commercial PCB auto-router originally developed by John F. Cooper and David Chyan of Cooper & Chyan Technology, Inc. (CCT) in 1989. The company and product were taken over by Cadence Design Systems in May 1997. Since its integration into Cadence's Allegro PCB Editor, the name of the router is Allegro PCB Router. The latest version is 17.4 - 22.1 (October 20 2022). Specctra routes boards by presenting graphical data using a "shape-based" technology which represents graphical objects not as a set of points-coordinates, but more compact. This increases the efficiency of routing printed circuit boards with a high density of components, provides automatic routing of the same chain of tracks of different widths and more. Specctra uses adaptive algorithms implemented in multiple trace runs. The routing is carried out in three stages: # preview routing # autoroute # additional processing of autoroute results On the first pass, the connection of all conductors is performed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Place And Route
Place and route is a stage in the design of printed circuit boards, integrated circuits, and field-programmable gate arrays. As implied by the name, it is composed of two steps, placement and routing. The first step, placement, involves deciding where to place all electronic components, circuitry, and logic elements in a generally limited amount of space. This is followed by routing, which decides the exact design of all the wires needed to connect the placed components. This step must implement all the desired connections while following the rules and limitations of the manufacturing process. Place and route is used in several contexts: * Printed circuit boards, during which components are graphically placed on the board and the wires drawn between them * Integrated circuits, during which a layout of a larger block of the circuit or the whole circuit is created from layouts of smaller sub-blocks * FPGAs, during which logic elements are placed and interconnected on the grid of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heuristic (computer Science)
In mathematical optimization and computer science, heuristic (from Greek εὑρίσκω "I find, discover") is a technique designed for solving a problem more quickly when classic methods are too slow for finding an approximate solution, or when classic methods fail to find any exact solution. This is achieved by trading optimality, completeness, accuracy, or precision for speed. In a way, it can be considered a shortcut. A heuristic function, also simply called a heuristic, is a function that ranks alternatives in search algorithms at each branching step based on available information to decide which branch to follow. For example, it may approximate the exact solution. Definition and motivation The objective of a heuristic is to produce a solution in a reasonable time frame that is good enough for solving the problem at hand. This solution may not be the best of all the solutions to this problem, or it may simply approximate the exact solution. But it is still valuable b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zuken
is a Japanese multinational corporation, specializing in software and Information technology consulting, consulting services for end-to-end electrical and electronic engineering. Zuken came into existence as a pioneer in the development of Computer-aided design, CAD systems in Japan to contribute to electronics manufacturing. The literal translation of Zuken is "graphics laboratory." Established in 1976 in Yokohama, Japan, it is listed on the Tokyo Stock Exchange; net sales amounted to US$216 million for the year 2011. Zuken's software is primarily used for designing printed circuit boards (PCBs), Multi-Chip Modules, and for the engineering of electrotechnical, wiring, wiring harness, pneumatics and hydraulics applications. Furthermore, Zuken offers software for electrical and electronic engineering data management (e-Product lifecycle management, PLM). The company's key markets are the electronics industry – which includes digital home electrical appliances; mobile phone, mobil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racal-Redac
Racal Electronics plc was a British electronics company that was founded in 1950. Listed on the London Stock Exchange and once a constituent of the FTSE 100 Index, Racal was a diversified company, offering products including voice loggers and data recorders, point of sale terminals, laboratory instruments and military electronics, including radio and radar. At its height it was the third largest British electronics firm; it operated throughout 110 countries worldwide and employed over 30,000 people. It was the parent company of Vodafone, before the mobile telephony provider was sold in 1991. Racal was purchased by Thomson-CSF (now Thales Group) in 2000, thereby giving the French firm access to the UK defence and armaments market. In 2001, Racal Instruments, Inc. became an independent company after a leveraged buyout from Thales. In 2004, Racal Instruments, Inc. was acquired by EADS North America Defense and Test Services, Inc., which was then acquired by Astronics Corpora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CADSTAR
CADSTAR is a Windows-based electronic design automation (EDA) software tool for designing and creating schematic diagrams and printed circuit boards (PCBs). It provides engineers with a tool for designing simple or complex, multilayer PCBs. CADSTAR spans schematic capture, variant management, placement, automatic and high-speed routing, signal integrity, power integrity, EMC analysis, design rule checks and production of manufacturing data. Originally developed by U.K. PCB vendor Racal-Redac, CADSTAR has been part of the Zuken product portfolio since its acquisition in 1994. The software is developed at Zuken's Technology Centre, ZTC in Bristol, United Kingdom. The basic features of CADSTAR can be tested with the free version of CADSTAR Express or Schematic and PCB files produced by CADSTAR can be reviewed using the free CADSTAR Design Viewer. History The first version of CADSTAR was released in 1988 running under DOS. CADSTAR for Windows 1.0 was released in March 1994. Since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bloodhound Router
The bloodhound is a large scent hound, originally bred for hunting deer, wild boar and, since the Middle Ages, for tracking people. Believed to be descended from hounds once kept at the Abbey of Saint-Hubert, Belgium, in French it is called, ''le chien de Saint-Hubert''. This breed is famed for its ability to discern human scent over great distances, even days later. Its extraordinarily keen sense of smell is combined with a strong and tenacious tracking instinct, producing the ideal scent hound, and it is used by police and law enforcement all over the world to track escaped prisoners, missing people, and lost pets. Appearance Bloodhounds weigh from 36 to 72 kg (80 to 160 lbs). They are 58 to 69 cm (23 to 27 inches) tall at the withers. According to the AKC standard for the breed, larger dogs are preferred by conformation judges. Acceptable colors for bloodhounds are black, liver, and red. Bloodhounds possess an unusually large skeletal structure with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Area Router
Area is the quantity that expresses the extent of a region on the plane or on a curved surface. The area of a plane region or ''plane area'' refers to the area of a shape or planar lamina, while ''surface area'' refers to the area of an open surface or the boundary of a three-dimensional object. Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape, or the amount of paint necessary to cover the surface with a single coat. It is the two-dimensional analogue of the length of a curve (a one-dimensional concept) or the volume of a solid (a three-dimensional concept). The area of a shape can be measured by comparing the shape to squares of a fixed size. In the International System of Units (SI), the standard unit of area is the square metre (written as m2), which is the area of a square whose sides are one metre long. A shape with an area of three square metres would have the same area as three such squares. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Switchbox Router
A KVM switch (with KVM being an abbreviation for "keyboard, video, and mouse") is a hardware device that allows a user to control multiple computers from one or more sets of keyboards, video monitors, and mice. Name Switches to connect multiple computers to one or more peripherals have had a variety of names. The earliest name was Keyboard Video Switch (KVS). With the advent of the mouse, the Keyboard, Video and Mouse (KVM) switch became popular. The name was introduced by Remigius Shatas, the founder of Cybex, a peripheral switch manufacturer, in 1995. Some companies call their switches Keyboard, Video, Mouse and Peripheral (KVMP). Types With the popularity of USB—USB keyboards, mice, and I/O devices are still the most common devices connected to a KVM switch. The classes of KVM switches that are reviewed, are based on different types of core technologies in terms of how the KVM switch handles USB I/O devices—including keyboards, mice, touchscreen displays, etc. ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
