Advantages and disadvantages of different PCB surface treatments
There are many kinds of surface treatment of the circuit board. PCB proofing personnel should choose according to the performance and requirements of the board.
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PCB design copper foil thickness, wire width and current relationship
The use of direct paving mode is characterized by a strong overcurrent capacity of the pad, for high-power circuit device pins must be used in this way. At the same time, its thermal conductivity is also very strong, although the work is good for the heat
The relationship between current and line width in PCB design
Like this kind of treatment method for those engaged in small household appliances PCB Layout friends are not unfamiliar, so if the amount of tin is uniform enough and the amount of tin is enough, this 1mm wire can be seen as more than a 2mm wire.
PCB high frequency board to choose what board and production processing methods
which also means that the frequency is higher and higher, the requirements of the circuit board substrate is also higher and higher.
Do you know the three reasons why PCB copper flakes fall off?
When the production of laminate using copper foil and the resin system does not match, resulting in sheet metal foil peeling strength is not enough, plug-in will also appear bad copper wire shedding.
In the future, the output value of PCB in China will exceed 40 billion US dollars
For PCB products in these emerging markets, the process and raw materials of high-end high frequency and high speed pcb board need to be comprehensively upgraded, and the technical barriers are comprehensively improved. The key to realize high frequency o
PCBA assembly Plant: How to ensure accurate assembly and quality control?
How to ensure accurate assembly and quality control? First, accurate assembly, second, quality control, third, testing
What are the characteristics of PCBA assembly plants?
What are the characteristics of PCBA assembly plants? First, design ability of PCBA assembly plant; second, quality control of PCBA assembly plant; third, technical support of PCBA assembly plant
How does the PCBA processing plant complete the task quickly and accurately?
PCB fabrication is one of the most important steps for PCBA processing plant to complete the task quickly and accurately, including: the process design of the board, tooling design and production, the production of the circuit board
PCB perforation technology overview
The depth of the holes usually does not exceed a certain ratio (aperture). Buried holes are connection holes located in the inner layer of the PCB that do not extend to the surface of the PCB.
What matters should be paid attention to in the process of PCBA proofing?
What matters should be paid attention to in the process of PCBA proofing: first, material selection, second, process design, third, PCBA proofing audit, fourth, BOM list, fifth, PCBA proofing test
Statistics show that the Chinese mainland surpassed Japan to become the world's second largest PCB production region
Place some grounded holes near the holes of the signal changing layer in order to provide the nearest loop for the signal.
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