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.
The frontal lobe, located at the front of the brain, is the largest of the four major lobes of the cerebral cortex in the mammalian brain. The frontal lobe is located at the front of each cerebral hemisphere. It is separated from the parietal lobe by a groove between tissues called the central sulcus, and from the temporal lobe by a deeper groove called the lateral sulcus. The most anterior rounded part of the frontal lobe is known as the frontal pole, one of the three poles of the cerebrum. The