(SPGA) A style of integrated CirCuit soCket or pin-out with a staggered grid of pins around the edge of the soCket, positioned as several squares, one inside the other. SPGA is Commonly used on motherboards for proCessors, e.g. SoCket 5, SoCket 7 and SoCket 8. See also PGA. [Better desCription?] (1999-08-04)