Common causes of PCB board cable breakage
Common causes of PCB line break: 1, film process: 2, exposure process: 3, development process: 5, electroplating problems
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
How can PCBA avoid PCB board warping?
PCBA processing to avoid PCB board warping method:1. Reduce the influence of temperature on plate stress; 2. Adopt high Tg plate; 3. Increase the thickness of the circuit board, 4. Reduce the size of the circuit board and reduce the number of pieces of th
PCB board to do the importance of plug hole
The plug technology meets the following requirements :1. Copper can be found in the through hole, but the plug cannot be used for resistance welding. 2. There must be tin lead in the through hole, with a certain thickness requirement (4 microns). Do not a
Why are most PCB board colors green?
Purpose and precautions of reserved process edge in PCB design: Reserved process edge is the part added on both sides or four sides of PCB board to assist patch plug-in welding, which is mainly to assist production and does not belong to the PCB board. It
Analysis of the deformation cause of PCB board in the process of processing
Analysis of the deformation causes of PCB board in the process of processing: 1. Incoming material of copper clad plate: 2. Pressing: 3. Welding resistance, character and other baking process: 4. Hot air solder leveling: 5. Storage
PCB boards are widely used in the field of automatic testing of printed circuit boards
PCB board test system will have a new design idea, the use of automatic test system based on USB bus and virtual instrument design idea, give full play to the role of the computer
Why should PCB board use gold plating process?
new energy electric vehicles, module board, industrial control circuit board, medical circuit board, intelligent security PCB board, automotive electronic communication circuit board
Detailed the copper sinking process of PCB board production and processing
The post-process can only be screened probabilistic through destructive experiments, and it is impossible to effectively analyze and monitor a single PCB board.
Five methods of PCB board removal integrated circuit
In the process of PCB board copying, since the circuit board needs to be split, the integrated circuit and other components are removed to make BOM list, and the bare PCB board is scanned and copied.
The presence of interference in PCB board
In the actual study, it is found that PCB design mainly has four aspects of interference: power supply noise, transmission line interference, coupling and electromagnetic interference (EMI).
PCB board substrate material classification
There are many kinds of PCB substrates, but they are generally divided into two categories, namely inorganic substrate materials and organic substrate materials.
Analysis of common bad causes of PCB board making
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
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