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Solder-stop Layer
Solder mask, solder stop mask or solder resist is a thin lacquer-like layer of polymer that is usually applied to the copper traces of a printed circuit board (PCB) for protection against oxidation and to prevent solder bridges from forming between closely spaced solder pads. A solder bridge is an unintended electrical connection between two conductors by means of a small blob of solder. PCBs use solder masks to prevent this from happening. Solder mask is not always used for hand soldered assemblies, but is essential for mass-produced boards that are soldered automatically using reflow or wave soldering techniques. Once applied, openings must be made in the solder mask wherever components are soldered, which is accomplished using photolithography. Solder mask is traditionally green, but is also available in many other colors. Solder mask comes in different media depending upon the demands of the application. The lowest-cost solder mask is epoxy liquid that is silkscreened thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silk-screen Layer
Screen printing is a printing technique where a mesh is used to transfer ink (or dye) onto a substrate, except in areas made impermeable to the ink by a blocking stencil. A blade or squeegee is moved across the screen in a "flood stroke" to fill the open mesh apertures with ink, and a reverse stroke then causes the screen to touch the substrate momentarily along a line of contact. This causes the ink to wet the substrate and be pulled out of the mesh apertures as the screen springs back after the blade has passed. One colour is printed at a time, so several screens can be used to produce a multi-coloured image or design. Traditionally, silk was used in the process. Currently, synthetic threads are commonly used. The most popular mesh in general use is made of polyester. There are special-use mesh materials of nylon and stainless steel available to the screen-printer. There are also different types of mesh size which will determine the outcome and look of the finished design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altium Limited
Altium Limited is an American multinational software company that provides electronic design automation software to engineers who design printed circuit boards. Founded as Protel Systems Pty Ltd in Australia in 1985, the company has regional headquarters in the United States, Australia, China, Europe, and Japan. Its products are designed for use in a Microsoft Windows environment and used in industries such as automotive, aerospace, defence and telecommunications. Its flagship product, Altium Designer, is a software for unified electronics design. Since August 2024, Altium is a subsidiary of Renesas Electronics. History 1985–1991: Early history The history of Altium dates to 1985 with the founding of Protel Systems Pty Ltd by electronics designer Nicholas Martin. He was working at the University of Tasmania in the 1980s. He saw an opportunity to make the design of electronics product affordable, by marrying the techniques of electronics design to the PC platform. The c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Würth Elektronik GmbH & Co
The Würth Group (, ) is a worldwide wholesaler of fasteners, screws and screw accessories. Würth expanded its range and today offers a full range of business equipment for craft businesses in a kind of supermarket of its own. Würth offers dowels, chemicals, electronic and electromechanical components, furniture and construction fittings, tools, machines, installation material, automotive hardware, inventory management, storage and retrieval systems. The group of over 400 companies across 80+ countries has been servicing the automotive, woodworking, metalworking, industrial and construction industries. Würth was founded in 1945 by Adolf Würth in Künzelsau, Germany. The company is family owned and has been run by his son Reinhold Würth since 1954. History Würth was founded by Adolf Würth (1909–1954), for the purpose of selling screws in 1945 in Künzelsau (hence the company logo, which consists of the family name and a W of two screw heads with cylindrical and round ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Through-hole
In electronics, through-hole technology (also spelled "thru-hole") is a manufacturing scheme in which leads on the components are inserted through holes drilled in printed circuit boards (PCB) and soldered to pads on the opposite side, either by manual assembly (hand placement) or by the use of automated insertion mount machines. History Through-hole technology almost completely replaced earlier electronics assembly techniques such as point-to-point construction. From the second generation of computers in the 1950s until surface-mount technology (SMT) became popular in the mid 1980s, every component on a typical PCB was a through-hole component. PCBs initially had tracks printed on one side only, later both sides, then multi-layer boards were in use. Through holes became plated-through holes (PTH) in order for the components to make contact with the required conductive layers. Plated-through holes are no longer required with SMT boards for making the component connections ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filename Extension
A filename extension, file name extension or file extension is a suffix to the name of a computer file (for example, .txt, .mp3, .exe) that indicates a characteristic of the file contents or its intended use. A filename extension is typically delimited from the rest of the filename with a full stop (period), but in some systems it is separated with spaces. Some file systems, such as the FAT file system used in DOS, implement filename extensions as a feature of the file system itself and may limit the length and format of the extension, while others, such as Unix file systems, the VFAT file system, and NTFS, treat filename extensions as part of the filename without special distinction. Operating system and file system support The Multics file system stores the file name as a single string, not split into base name and extension components, allowing the "." to be just another character allowed in file names. It allows for variable-length filenames, permitting more than o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerber Format
The Gerber format is an open, ASCII, vector format for printed circuit board (PCB) designs. It is the ''de facto'' standard used by PCB industry software to describe the printed circuit board images: copper layers, solder mask, legend, drill data, etc. The standard file extension is .GBR or .gbr though other extensions like .GB, .geb or .gerber are also used. It is documented by The Gerber Layer Format Specification and some related (but less universally supported) extensions such as XNC drill files and GerberJob to convey information about the entire PCB, as opposed to single layers. Gerber is used in PCB fabrication data. PCBs are designed on a specialized electronic design automation (EDA) or a computer-aided design (CAD) system. The CAD systems output PCB fabrication data to allow fabrication of the board. This data typically contains a Gerber file for each image layer (copper layers, solder mask, legend or silk...). Gerber is also the standard image input format for all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PADS (CAD Software)
Mentor Graphics Corporation was a United States, US-based electronic design automation (EDA) multinational corporation for electrical engineering and electronics, headquartered in Wilsonville, Oregon, Wilsonville, Oregon. Founded in 1981, the company distributed products that assist in electronic design automation, simulation tools for analog mixed-signal design, VPN solutions, and fluid dynamics and heat transfer tools. The company leveraged Apollo Computer workstations to differentiate itself within the computer-aided engineering (CAE) market with its software and Computer hardware, hardware. Mentor Graphics was acquired by Siemens in 2017. The name was retired in 2021 and renamed Siemens EDA, a segment of Siemens Digital Industries Software. History Mentor Graphics was founded in 1981 by Tom Bruggere, Gerry Langeler, and Dave Moffenbeier, all formerly of Tektronix. The company raised $55 million in funding through an initial public offering in 1984. Mentor initially wrote ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OrCAD
OrCAD Systems Corporation was a software company that made OrCAD, a proprietary software tool suite used primarily for electronic design automation (EDA). The software is used mainly by electronic design engineers and electronic technicians to create electronic schematics, and perform mixed-signal simulation and electronic prints for manufacturing printed circuit boards (PCBs). OrCAD was acquired by Cadence Design Systems in 1999 and was integrated with Cadence Allegro in 2005. Company Founded in 1985 by John Durbetaki, Ken, and Keith Seymour as "OrCAD Systems Corporation" in Hillsboro, Oregon, the company became a supplier of desktop electronic design automation (EDA) software. The name OrCAD is a portmanteau, reflecting the company and its software's origins: ''Or''egon + ''CAD''. In 1984 Durbetaki began designing an expansion chassis for the IBM Personal Computer. Durbetaki, who had left Intel Corp. after five years as an engineer and project manager, decided, along with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritzing
Fritzing is an open-source software, open-source initiative to develop amateur or hobby CAD software for the Electronic design automation, design of electronics hardware, intended to allow designers and artists to build more permanent circuits from prototypes. It was developed at the University of Applied Sciences Potsdam. Fritzing is free software under the GNU General Public License, GPL 3.0 or later license, with the source code available on GitHub and the binaries at a monetary cost, which is allowed by the GPL. Goals The software was created with inspiration from the Processing (programming language), Processing programming language and the Arduino microcontroller and allows a designer, artist, researcher, or hobbyist to document their Arduino-based prototype and create a Printed circuit board, PCB layout for manufacturing. The associated website helps users share and discuss drafts and experiences as well as to reduce manufacturing costs. Fritzing can be seen as an elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
