(FC-PGA) The package of certain IntelCeleron and Pentium III processors. FC-PGA processors fit into Socket 370motherboard sockets. The Flip Chip Pin Grid Array is similar to PPGA, except that the siliconcore is facing up and the heat slug is exposed. FC-PGA packaging is used by Pentium III processors, and Celeron 566 processors onward. Earlier Celeron processors used PPGA packaging. Celeron processors are also available in Slot 1SEPP packaging and Pentium III processors in Slot 1 SECC2 packaging. Adapters are available to allow a PPGA Celeron to plug into a Slot 1 connector. (2000-08-26)