> In a CPU with thousands of pins, how come they use N pins for ground, N pins for VCC, when it seems simpler to have continuous bar-shaped contacts? I can't s

> In a CPU with thousands of pins, how come they use N pins for ground, N pins for VCC, when it seems simpler to have continuous bar-shaped contacts? I can't speak to cpus with thousands of pins, but with significantly smaller chips that often have N>1 vcc or ground, it's typically due to layout convenience. The multiple vcc may be on e.g. opposite sides of the chip, and that makes it easier to route a pure vcc signal to a spot that needs it. It's easier to route outside the chip than inside the chip, because there's more space.