A pass hole is a pad with an electroplating hole that connects copper wires on one PCB layer to another. High density multilayer circuit boards may use blind or buried holes, also known as micro through holes.
Radio frequency and microwave signals are very sensitive to noise-much more so than ultra-fast digital signals. This means that you need to work hard to keep noise, ringing, and reflection to a minimum, while carefully handling the overall system
Power layer copper is a faster and easier option for most PCB design software. By sharing a large number of wires, maximum efficient current with minimum impedance or voltage drop is guaranteed, while providing an adequate grounding return path.
The de facto industry standard in high speed plate design. It's awesome in every way. PCB Layout tool is absolutely first-class, a little familiar with no longer want to use other tools, wiring super cool. Simulation is also very cattle, have their own si
PCB circuit board needs reasonable design and layout of components, in order to better play out the functional advantages of the circuit board.
mechanical -- the mechanical layer is what defines the appearance of the whole PCB board, actually when we say the mechanical layer we mean the structure of the whole PCB board.
The coupling capacitance between the wires determines the amplitude of the forward crosstalk pulse, and the coupling capacitance is determined by many factors, such as PCB material, geometry, line crossing location, and so on.
The parameter constraint editor facilitates PCB layout and wiring under multi-dimensional constraints, and for the first time, enables automatic routing software and PCB design rules to be fully checked against complex electrical and process requirements,
Coupled with these miniaturized PCB design rules, the problem of crosstalk noise becomes more and more acute, and the problems of crosstalk, switching noise, and ground bounce are exacerbated by the ball-grid arrays and other high-density packages themsel
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.
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.
In the layout of circuit modules, on the one hand, it is necessary to pay attention to the clock circuit and crystal oscillator circuit to reach the target through the shortest path.
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