|
Eremex TopoR
TopoR (''Topo''logical ''R''outer) is an 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, algorithms, and software implementat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Design Automation
Electronic design automation (EDA), also referred to as electronic computer-aided design (ECAD), is a category of software tools for designing Electronics, electronic systems such as integrated circuits and printed circuit boards. The tools work together in a Design flow (EDA), design flow that chip designers use to design and analyze entire semiconductor chips. Since a modern semiconductor chip can have billions of components, EDA tools are essential for their design; this article in particular describes EDA specifically with respect to integrated circuits (ICs). History Early days Prior to the development of EDA, integrated circuits were designed by hand and manually laid out. Some advanced shops used geometric software to generate tapes for a Gerber format, Gerber photoplotter, responsible for generating a monochromatic exposure image, but even those copied digital recordings of mechanically drawn components. The process was fundamentally graphic, with the translation f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KiCad
KiCad ( ) is a free software suite for electronic design automation (EDA). It facilitates the design and simulation of electronic hardware. It features an integrated environment for schematic capture, PCB layout, manufacturing file viewing, SPICE simulation, and engineering calculation. Tools exist within the package to create bill of materials, artwork, Gerber files, and 3D models of the PCB and its components. History Early history KiCad was created in 1992 by Jean-Pierre Charras while working at IUT de Grenoble. The name came from the first letters in the name of a company of Jean-Pierre's friend in combination with the term CAD. KiCad originally was a collection of electronics programs intended to be used in conjunction with each other. The main tools were EESchema, PCBnew, a gerber viewer, and calculator. 2010s to present With the price of professionally made printed circuit boards rapidly dropping, hobbyists electronic design became much more popular. As a result, Ki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DJ Delorie
A disc jockey, more commonly abbreviated as DJ, is a person who plays recorded music for an audience. Types of DJs include radio DJs (who host programs on music radio stations), club DJs (who work at a nightclub or music festival), mobile DJs (who are hired to work at public and private events such as weddings, parties, or festivals), and turntablists (who use record players, usually turntables, to manipulate sounds on phonograph records). Originally, the "disc" in "disc jockey" referred to shellac and later vinyl records, but nowadays DJ is used as an all-encompassing term to also describe persons who mix music from other recording media such as cassettes, CDs or digital audio files on a CDJ, controller, or even a laptop. DJs may adopt the title "DJ" in front of their real names, adopted pseudonyms, or stage names. DJs commonly use audio equipment that can play at least two sources of recorded music simultaneously. This enables them to blend tracks together to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Source
Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized software development model that encourages open collaboration. A main principle of open-source software development is peer production, with products such as source code, blueprints, and documentation freely available to the public. The open-source movement in software began as a response to the limitations of proprietary code. The model is used for projects such as in open-source appropriate technology, and open-source drug discovery. Open source promotes universal access via an open-source or free license to a product's design or blueprint, and universal redistribution of that design or blueprint. Before the phrase ''open source'' became widely adopted, developers and producers have used a variety of other terms. ''Open source'' gained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google
Google LLC () is an American multinational technology company focusing on search engine technology, online advertising, cloud computing, computer software, quantum computing, e-commerce, artificial intelligence, and consumer electronics. It has been referred to as "the most powerful company in the world" and one of the world's most valuable brands due to its market dominance, data collection, and technological advantages in the area of artificial intelligence. Its parent company Alphabet is considered one of the Big Five American information technology companies, alongside Amazon, Apple, Meta, and Microsoft. Google was founded on September 4, 1998, by Larry Page and Sergey Brin while they were PhD students at Stanford University in California. Together they own about 14% of its publicly listed shares and control 56% of its stockholder voting power through super-voting stock. The company went public via an initial public offering (IPO) in 2004. In 2015, Google was reor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GEDA Suite
The term gEDA refers to two things: # A set of software applications (CAD tools) used for electronic design released under the GPL. As such, gEDA is an ECAD (electronic CAD) or EDA (electronic design automation) application suite. gEDA is mostly oriented towards printed circuit board design (as opposed to integrated circuit design). The gEDA applications are often referred to collectively as "the gEDA Suite". # The collaboration of free software/open-source developers who work to develop and maintain the gEDA toolkit. The developers communicate via gEDA mailing lists, and have participated in the annual "Google Summer of Code" event as a single project. This collaboration is often referred to as "the gEDA Project". The word "gEDA" is a conjunction of "GPL" and "EDA". The names of some of the individual tools in the gEDA Suite are prefixed with the letter "g" to emphasize that they are released under the GNU General Public License. History The gEDA project was started ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PCB (software)
PCB is a free and open-source software suite for electronic design automation (EDA) - for printed circuit boards (PCB) layout. It uses GTK+ for its GUI widgets. History PCB was first written by Thomas Nau for an Atari ST in 1990 and ported to UNIX and X11 The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting wi ... in 1994. Initially PCB was not intended to be a professional layout system but as a tool for individuals to do small-scale development of hardware. The second release 1.2 introduced user menus. This made PCB easier to use and increased its popularity. Harry Eaton took over PCB development beginning with Release 1.5, although he contributed some code from Release 1.4.3. PCB includes a topological autorouter named Toporouter, developed by Anthony Blake in a Google-funded Open-source ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topor Singlelayer
TopoR (''Topo''logical ''R''outer) is an 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, algorithms, and software implementat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ball Grid Array
A ball grid array (BGA) is a type of surface-mount packaging (a chip carrier) used for integrated circuits. BGA packages are used to permanently mount devices such as microprocessors. A BGA can provide more interconnection pins than can be put on a dual in-line or flat package. The whole bottom surface of the device can be used, instead of just the perimeter. The traces connecting the package's leads to the wires or balls which connect the die to package are also on average shorter than with a perimeter-only type, leading to better performance at high speeds. BGAs were introduced in the 1990s and became popular by 2001. Soldering of BGA devices requires precise control and is usually done by automated processes such as in computer-controlled automatic reflow ovens. Description The BGA is descended from the pin grid array (PGA), which is a package with one face covered (or partly covered) with pins in a grid pattern which, in operation, conduct electrical signals betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topor Bga
TopoR (''Topo''logical ''R''outer) is an 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, algorithms, and software implementat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teardrop (electronics)
In printed circuit boards, teardrops are typically drop-shaped features at the junction of vias (''teardrop vias'') or contact pads (''teardrop pads'') and traces (''teardrop traces''). The main purpose of teardrops is to enhance structural integrity in presence of thermal or mechanical stresses, for example due to vibration or flexing. Structural integrity may be compromised, e.g., by misalignment during drilling, so that too much copper may be removed by the drill hole in the area where a trace connects to the pad or via. An extra advantage is the enlarging of manufacturing tolerances, making manufacturing easier and cheaper. While a typical shape of a teardrop is straight-line tapering, they may be concave. This type of teardrop is also called ''filleting'' or ''straight''. To produce a ''snowman''-shaped teardrop, a secondary pad of smaller size is added at the junction overlapping with the primary pad (hence the nickname). Necking For similar reasons, a technique call ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
