The Ball Grid Array, BGA, uses the underside of the package, where there is a considerable area for the connections. SMD BGA Ball Grid Array package diagram. The pins are placed in a grid pattern (hence the name Ball Grid Array) on the under-surface of the chip carrier.
* The cerebellum (infratentorial or back of brain) is located at the back of the head. Its function is to coordinate voluntary muscle movements, and to maintain posture, balance and equilibrium. The cerebellum also affects emotions and higher-level cognitive functions.
Occipital lobe â a small region located at the back of the head. The occipital lobe is responsible for integration of vision. Temporal lobe â located at the side of the head above the ears and below the frontal lobe. The temporal lobe controls hearing, memory, speech, and comprehension.