How do circuitboards work?
In: Engineering
Circuit boards are actually many layers.
The bulk of each layer and the area in between layers are non conductive, meaning electricity doesn’t flow through it.
Strips of metallic materi are run through this non conductive area to connect two points electriy. And it can be run up and down from layer to layer to connect overlapping strips between layers
So at its core a circuit board acts just like a bunch of wires connecting different points. The circuit board doesn’t actually do anything, it just connects different areas. The multiple layers allow different paths to cross without touching.
All the components and power and stuff that actually DOES things are connected to pads on the surface via soldering (there are different methods, like through hole and surface mount)
Conductive metal strips are formed on a non-conductive surface (board). When components are hooked to these conductors they combine to form a circuit that does something useful.
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