Hi All,
This might be a noob question but still its extremely confusing for me. I am designing a 4 layer PCB and unfortunately dont understand how via's work. In a 2 layer PCB, a via connects the signal traces from the top to bottom layer. I get that part.
Now if I have a 4 layer PCB with 2 signal planes (top & bottom, layer 1 and 16) and 2 power planes (layer 2:GND, layer15:+3.3V). Layers 1&2 form a core and layers 15&16 form another core.
In this case, if I used only through via's how does that work? So if I wanted to connect a signal trace from layer 1(top) to layer 2(gnd), the via would go through all four layers. Doesnt that short out layers 2 and 15, thereby shorting out GND and VCC?
Might sound really trivial but any help is much appreciated.
Thanks!
This might be a noob question but still its extremely confusing for me. I am designing a 4 layer PCB and unfortunately dont understand how via's work. In a 2 layer PCB, a via connects the signal traces from the top to bottom layer. I get that part.
Now if I have a 4 layer PCB with 2 signal planes (top & bottom, layer 1 and 16) and 2 power planes (layer 2:GND, layer15:+3.3V). Layers 1&2 form a core and layers 15&16 form another core.
In this case, if I used only through via's how does that work? So if I wanted to connect a signal trace from layer 1(top) to layer 2(gnd), the via would go through all four layers. Doesnt that short out layers 2 and 15, thereby shorting out GND and VCC?
Might sound really trivial but any help is much appreciated.
Thanks!