Hi guys,
I am checking some online PCB designs for making my Raspberry HAT (figure 1).
And I am confused with the wiring layout on female pin headers. I did vias (thru-hole) for connecting top with bottom layout like the figure 2. Given that I will weld the header on top layer for a HAT (figure 1).
But in the figure 3 and 4 for example, the designers, with the same idea for the HAT, didn't make the connection between both layouts. They only wired the bottom component to the pin header in the bottom layout. Can you explain to me the reason why they don't connect both layout?
I appreciate your replies and time.
I am checking some online PCB designs for making my Raspberry HAT (figure 1).
And I am confused with the wiring layout on female pin headers. I did vias (thru-hole) for connecting top with bottom layout like the figure 2. Given that I will weld the header on top layer for a HAT (figure 1).
But in the figure 3 and 4 for example, the designers, with the same idea for the HAT, didn't make the connection between both layouts. They only wired the bottom component to the pin header in the bottom layout. Can you explain to me the reason why they don't connect both layout?
I appreciate your replies and time.