Electrostatic protection method in PCBA processing and production
In PCB processing and production, static electricity is not the hazard, the real danger lies in the accumulation of static electricity, and the resulting electrostatic discharge.
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Electrostatic discharge (ESD) damage to PCBA processing
In the process of production, packaging and transportation, and the processing, debugging and testing of the integrated machine, it is inevitable to suffer from external or own friction and form a high surface potential.
Which PCB printing method is better?
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
What do the loading fee and engineering fee in PCBA proofing fee mean?
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.
How to determine the PCB substrate material?
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.
The function and process of PCB board making through hole plug are introduced
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
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
PCBA clean free welding technology
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.
Mixed loading technology in PCBA processing
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 PCB production process
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.
Thermal design requirements of PCBA
Due to the different heat capacity and heating conditions of pad and pin, the temperature to which pad and pin are heated during reflow welding is also different. If the temperature difference is relatively large, it may cause poor welding.
What is PCBA blending degree
There are two important concepts in IPC-SM-782, "Producibility Levels" and "Component Mounting Complexity Levels", which are different but have corresponding three levels.
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