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.
Cerebellum Location and Primary Function. The Cerebellum is one of the most important parts of the brain. It is located at the rear end of the brain under the cerebral hemisphere. It is differentiated from the Cerebrum from its folded lines accordion structure. It is also attached to the brains stem with the help of pons.