I'm trying to route 10 DIP ICs on a single-sided PCB, but because of my available pcb space, I cannot fit all 10 ICs in one single row. Instead, I lined them up in three rows.
It seems that if I connect the VCC pin on every IC to the positive through some sort of jumper wire instead of a direct connection on the PCB itself then the odds of me being able to route the whole board to 100% rise significantly. Same deal with GND pins.
If I'm not mistaken, adding jumper wires introduces either inductance or resistance and too much of that can create undesirable results. The ICs I used are of mixed types: some digital like the 74HC, an op-amp, sound chip (ISD1700), DAC, etc.
I was initially thinking connecting jumper wires from +ve of battery to VCC and using maybe a couple 0 ohm resistors in parallel to minimize bad effects, but I'm not sure. The point is, I want to be able to route the whole circuit to 100%.
Which is better:
Connecting the VCC pin of every chip (or at least the digital IC's) to the +ve of the battery through a jumper wire and connecting ground directly to the -ve of the battery?
Connecting the ground pin of every chip (or at least the digital IC's) to the -ve of the battery through a jumper wire and connecting VCC directly to the +ve of the battery?