PROBLEM TO BE SOLVED: To provide an LGA package socket not causing deformation of a housing of the socket, having full strength even though being compact, being durable and simple and having good fixing workability. SOLUTION: A cover member 8 of the LGA package socket 1 has a bearing tongue piece 64 pivotally mounted around a shaft 26. A metallic reinforcing plate 10 is fixed on lower side of the housing 2 by four holding pieces 82. A lever 12 is journaled by journaling pieces 92, 96 of the reinforcing plate 10. When pressing an LGA package 200, the cover member 8 is locked by the shaft 26 and a lock part 15 of the lever 12. Then the housing 2 is held by the rigid metallic cover member 8 and the reinforcing plate 10. Thereby, possibility of deformation of the housing 2 is reduced. COPYRIGHT: (C)2004,JPO&NCIPI