PCB Copper Experience | China PCBA Supplier

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The purpose of copper coating on a PCB is to reduce ground impedance, improve anti-interference ability, minimize voltage drop, enhance power efficiency, and connect with the ground to minimize the loop area. If the PCB has more ground, there are SGND, AGND, GND, etc. To cover copper, it is best to separate the copper by the most important "ground" as the reference point according to the position of the PCB board. It is recommended to separate the copper into digital and analog ground. Before coating the copper, it is essential to increase the corresponding power connection such as V5.0V, V3.6V, V3.3V, and so on. By doing so, a plurality of multi-deformed structures of different shapes are formed.

When dealing with copper cladding, several issues need to be addressed. One of the problems is a single point connection in different places. The method used to solve this issue is to connect through 0 ohm resistor or magnetic beads or inductor. Another problem with copper cladding is when it is used near the crystal oscillator. The crystal oscillator is a high-frequency emission source, and copper is applied around it, followed by grounding the outer casing of the crystal separately. The third problem is the issue of an island or dead zone. If the dead zone is significant, defining a place to add will not cost much.

PCB Copper Experience

It is not easy to generalize whether large area copper or grid copper is better. A large area of copper may cause problems during wave soldering, such as the board upturning or even foaming. In contrast, the heat dissipation of the grid is better. Usually, the high-frequency circuit is used to resist the interference of the multi-purpose grid, and the low-frequency circuit has a large current circuit. However, when making signals above 1 GHz, the impedance must match, and the reflective surface must be full copper.

When wiring the ground wire, it is important to treat it equally and take it well when routing the wire. One cannot rely on copper to add the via hole to eliminate the ground pin. If grid copper is chosen, these ground connections will affect the appearance of beauty. However, if you are careful, you can delete them.

In summary, copper has several benefits. It improves power efficiency, reduces high-frequency interference, and looks beautiful.

Why Choose China PCBA Supplier KSPCBA as Your PCB Copper Experience Manufacturer?

– Experienced and skilled team

– State-of-the-art equipment

– Strict quality control

– Excellent customer service

– Competitive price