The function of PCB design discharge teeth: in surge testing or ESD testing, the two ends of the common-mode inductor will produce high voltage, there will be a flying arc, if the distance is close to the surrounding devices, it may cause damage to the su
The role of PCB process edge: process edge is the part added on both sides or four sides of PCB board, mainly to assist the patch plug-in welding plate
PCB board common bad reasons: 1, short circuit, 2, open circuit, 3, PCB board dark and granular contact, 4, PCB board solder joint into golden yellow, 5, environmental impact
How to route the key signals of PCB design: first, analog signal wiring requirements, second, high-speed signal wiring requirements, third, clock signal wiring requirements
SMT patch processing emphasizes fast and efficient production. General SMT patch workshops will carry out non-stop production. The shutdown and line change of machines will increase production costs and reduce profits.
Aluminum is a very attractive material with abundant resources, low cost, excellent thermal conductivity and strength. In addition, it is very environmentally friendly and can be used on most metal substrates or cores.
During SMT processing, plug holes are required, which have five main functions:1. Prevent short circuit caused by tin penetrating through the component surface from the passthrough hole during wave soldering of PCB; 2. Avoid flux residue in the pass hole.
Four characteristics of PCB gold sinking process: 1. Gold sinking plate bright color, good color, beautiful, enhance the appeal to customers. 2. The crystal structure formed by sinking gold is easier to weld and has better performance to ensure the qualit
The cleaning process needs to consume energy, manpower and cleaning materials, especially the waste gas, waste water discharge and environmental pollution caused by cleaning materials, which has become a problem that must be paid attention to.
Mixing process is in the PCB board A side has a number of IC components, and inserted with through hole components, on the other side of the PCB (B side) and there are many patch resistance capacitance electrical parts, sometimes IC, often called "mi...
Flexible printed circuit board is composed of flexible substrate (PI/PET), copper foil and binder. It is widely used in consumer electronic terminal products, such as smart phones, tablets, personal medical devices and so on.
The influence of human factors on manual welding of soldering iron is more. Machine welding, once the process parameters are adjusted, the production is very stable, but there are problems of welding temperature and welding time in manual welding.
