Cause analysis and improvement of PCB size expansion and shrinkage
The severe shrinkage of PCB parts after the transfer of the outer pattern caused by the poor dimensi...
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Electrical zoning principle
Digital circuit and analog circuit isolation. It is a general principle in all PCB designs to keep d...
PCB Stack PCB design principles
PCB stacking PCB design principles. The most efficient way to stack boards is to arrange the main gr...
Analysis of common problems and design principles in RF integrated circuit PCB design
Under normal circumstances, for the circuit below the microwave frequency band (including low freque...
The concept of layer and the design of the processing layer of MARK point
The above DFM general technical requirements (single and double panel part) are only for the referen...
General technical requirements of DFM in PCB process
The relevant design elements constituting the PCB shall be described in the design drawing. Appearan...
How to complete PCB component layout in LED switching power supply design?
Whether the size of the printed board is consistent with the size of the processing drawings, whethe...
Embedded PCB design needs to master the basic concept
In order to facilitate the installation and maintenance of the circuit, the required logo pattern an...
laminate raw material reasons
There is also a situation that PCB etching parameters have no problem, but after etching washing, an...
Formation and hazard of black nickel
With these tools, problems can be detected before the ENIG board is used, avoiding the creation of a...
Two potential problems (black nickel and phosphorous rich layer) of PCB welding pad treated by ENIG and preventive measures
ENIG surface treatment circuit board is one of the biggest advantages of the circuit board productio...
PCB manufacturing process for welding pad requirements
The center of gravity of the entire board should be close to the geometric center of the PCB. The ce...
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