The reasonable selection of printed board size can make full use of the intermediate layer to set the shield, realize the nearby grounding better, reduce the parasitic inductance and shorten the transmission length of the signal.
A standard PCB looks something like this. Bare Board (with no parts attached) is also often referred to as a "Printed Wiring Board (PWB)".
The development level of printed circuit board industry can reflect the development speed and technical level of electronic industry in a country or region to some extent.
With the "copper plating" process put into use, our company's various production lines have been established, through the introduction of production technical personnel, increase the training and education of production line staff, to ensure the...
The choice of surface treatment process mainly depends on the type of final assembly components; The surface treatment process will affect the production, assembly and final use of PCB board.
communication backplane, automotive board and other fields is relatively slow, while the HDI board, packaging board and soft board applied in high-end mobile phones, laptops and other "thin and short" electronic products will maintain rapid grow...
scheme selection, circuit design, circuit board design, structure design, component selection, production process, etc
There are many PCB surface treatment processes, the common ones are hot air leveling, organic coating, electroless nickel plating, gold dipping, silver dipping and tin dipping.
At present, no matter what kind of etching fluid is used, high pressure spray must be used, and in order to obtain a cleaner line side and high quality etching effect, the nozzle structure and spray mode must be strictly selected.
In order to understand PCB, it is necessary to understand the production process of usually single-sided, double-sided printed circuit board and ordinary multilayer board, in order to deepen the understanding of it.
That is, on the copper foil part of the outer layer of the board to be retained, that is, on the graphic part of the circuit, a layer of lead tin corrosion resistance layer is pre-plated, and then the rest of the copper foil is etched away by chemical mea
These components cannot be inserted or attached to the holes and surface pads of the circuit board and can even damage automatic cassette loaders. Welded circuit board components, bending components, feet neatly cut.
