Layout design In the PCB design, special components refer to the key components of the high-frequency part, the core components in the circuit, the components that are susceptible to interference, the components with high voltage, the components with high heat generation, and some heterosexual components , the position of these special components needs to be … Continued
With microprocessor and signal conversion and transmission device running speed increase, digital circuit running speed also reached a higher level: 100Gbps. High-speed signal requirements will not be met using a generic PCB board, and the board material will determine the performance of the product. PCB board selection must meet the design requirements, mass production and … Continued
The design of the printed circuit board is based on the circuit schematic diagram to realize the functions required by the circuit designer. The design of the printed circuit board mainly refers to the layout design, and the layout of external connections needs to be considered. Various factors such as optimal layout of internal electronic … Continued
The meanings and characteristics of these three holes for circuit board. Conducting holes (VIA), a common type of hole used to conduct or connect copper foil lines between conductive patterns in different layers of a circuit board. For example (such as blind holes, buried holes), but can not insert component lead legs or other reinforced … Continued
3W principle in PCB Design In the PCB design, in order to reduce the crosstalk between lines, the line spacing should be large enough. When the line center spacing is not less than 3 times the line width, most of the electric fields can be kept from interfering with each other. This is the 3W … Continued
As an important link in hardware design, PCB Layout is an absolutely important index affecting performance when the hardware circuit design is reasonable. Many PCB Layout engineers complete the Layout and wiring according to the constraint rules given by hardware engineers or PI SI engineers. These are commonly known as “wire pullers”. After a period … Continued
To measure the technological level of a circuit board manufacturer, the first thing that comes to mind is the number of layers of the production and processing circuit board. So the multi-layer circuit board is more strict in the process of production. The multi-layer circuit board needs to sink copper in the hole, so that … Continued
When designing flexible circuit boards, have you encountered troubles in choosing solder masks and overlays? The solder mask and the cover layer have the same basic insulation function. Do you know the difference between the solder mask and the cover layer? Can the solder mask and the cover layer be overlapped for insulation? Do you … Continued
Recently, many customers asked me, what does the flexible circuit board mold include? And why do we need to open the mold? How many types of molds are there for flexible circuit boards? How to choose a suitable mold for flexible circuit boards? Today, let us understand the flexible circuit board mold together. FPC molds … Continued
Assembling components on FPC flexible circuit boards is required, as the smart wearable industry becomes more and more popular, due to the limitation of assembly space, surface mounting of SMD on FPC has become one of the development trends of SMT technology. However, FPC is more difficult to assemble than PCB because it is not … Continued
China PWB has many advanced equipments, and it is difficult for Chinese engineers to understand english. Here we will translate some main machine name for easy study. China PWB equipments name 自动外观检测仪 Automatic PCB visual inspection machine检孔机 Hole inspection machine离子污染测试仪 Ionic contamination tester电测 e-test低阻四线飞针测试仪 High Speed Fly Probe TesterAOI 检测 AOI inspection 板料仓库 board material … Continued