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What is pcb design?

Simply put,

PCB is a circuit board,

PCB design is based on circuit schematic diagram,

Design circuit boards,

Design the position of each element,

Using several layers of wood,

What is the structure and diameter of the layer,

Get through there,

How to put the thread in,

From where to where,

What is the line width,

How big is the impedance,

And length, etc.