PCB terminals almost we can see the electronic equipment are inseparable from it, small to electronic watches, calculators, general-purpose computers, large to computers, communication and electronic equipment, military weapon systems, as long as there are integrated circuits and other electronic components, electrical interconnection between them to use the PCB. In addition to fixing a variety of small parts, it provides integrated circuits and other electronic components fixed assembly mechanical support, the realization of integrated circuits and other electronic components between the wiring and electrical connections or electrical insulation, provide the required electrical characteristics, such as characteristic impedance. At the same time for the automatic solder welding to provide welding graphics, for components plug-in, inspection, maintenance to provide identification characters and graphics.
With the increasingly complex electronic equipment, the need for more and more parts, PCB overhead lines and parts are more and more intensive. PCB production process is more complex, it involves a wide range of technology, PCB terminals from simple mechanical processing to complex mechanical processing, there are ordinary chemical reactions, such as photochemical electrochemistry, such as technology, CAD cam and other aspects of knowledge. And in the production process a lot of technical problems and will always meet new problems and part of the problem in the absence of the cause of the problem disappeared, PCB terminals because of its production process is a discontinuous pipeline form, any one link problems will result in a full line of production or a large number of scrap consequences.
Printed circuit boards If the scrap is not recyclable, the process engineer work pressure, so many engineers left the industry to transfer to the printed circuit board equipment or materials manufacturers to do sales and technical services work. PCB Wiring Terminal If you want to two PCB mutual connection, generally we will use commonly known as "Goldfinger" Edge Connector (Edge Connector). Gold finger contains a lot of bare copper mat, these copper mat is in fact also a part of PCB wiring. PCB wiring terminals are usually connected, we will one piece of PCB on the gold finger into another piece of PCB on the appropriate slot (commonly called expansion slot slot). PCB terminals in the computer, such as display cards, sound cards or other similar interface cards, are connected with the motherboard by the gold finger.