(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)