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.
Overview. 1  The brain is the control center for most of the body, receiving and processing signals in the body. 2  The cerebrum is the largest and the most prominent part of the brain. 3  The cerebral hemispheres and other areas of the brain are divided into lobes or sections.  The temporal lobe is located on either side of the brain just above the ear.