应该注意的是，由于通过空气对流散热，外部 PCB 层比内部层实现更好的热传递。反过来说，内部电介质不能很好地导热，这就解释了为什么内部走线比外部走线宽。

应该注意的是，由于通过空气对流散热，外部 PCB 层比内部层实现更好的热传递。反过来说，内部电介质不能很好地导热，这就解释了为什么内部走线比外部走线宽。

Printed circuit boards were once so simple. One or two layers of copper etched on a rectangular fiberglass substrate, with a ...

“Interposer routing is much easier, as the number of components is drastically reduced compared to the PCB,” says Andy Heinig, head of department for efficient electronics at Fraunhofer IIS/EAS. “On ...

Printed circuit boards (PCBs) have come a long way over the years. Electronics design engineers must stay aware of the latest ...