The first is the preferred solution. The outer layer of the PCB is all the strata, and the middle two layers are the signal/power layer. The power supply at the signal layer is routed with a wide wire, which allows the path impedance of the power supply c
PCB circuit board manufacturers to PCB circuit board related design parameters detailed.
High-speed signal networks, such as clock signals, produce closed-loop results when multi-layer PCB lines are routed. Such closed-loop results will generate ring antennas and increase EMI radiation intensity.
It has been proved that the reliability of electronic equipment will be adversely affected even if the circuit diagram is designed correctly and the printed circuit board is not designed properly.
These are the high frequency PCB design tips for PCB interconnect. If you are familiar with these methods, you will understand that the coplanar microstrip design with copper cladding on the back is more economical and practical than the strip design.
Under normal circumstances, for the circuit below the microwave frequency band (including low frequency and low frequency digital circuit), careful planning under the premise of a comprehensive grasp of various PCB design principles is the guarantee of on
The above DFM general technical requirements (single and double panel part) are only for the reference of Shenzhen Honglijer for customers in the design of PCB files, and hope to negotiate and reconcile with each other on the above aspects, in order to be
The relevant design elements constituting the PCB shall be described in the design drawing. Appearance should be represented by Mechanical 1 layer (priority) or Keep out layer.
Whether the size of the printed board is consistent with the size of the processing drawings, whether it meets the requirements of the PCB manufacturing process, and whether there is a behavior mark.
In order to facilitate the installation and maintenance of the circuit, the required logo pattern and text code are printed on the upper and lower surfaces of the printing board, such as component label and nominal value, component outline shape and manuf
The center of gravity of the entire board should be close to the geometric center of the PCB. The center of gravity should not be allowed to drift to the edge of the board (1/4 area).
In general, the direction of wave soldering on the printed circuit board should be parallel to the long side of the printed circuit board and perpendicular to the short side of the printed circuit board.
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