Patent ID: 7070437

Claim:
A CPU socket having a base having multiple first apertures defined through the base and each first aperture having therein a metal contact, a first recess defined in a top face thereof to receive therein a guiding plate and a first through hole defined through a bottom face defining the first recess, the guiding plate having a first hole defined to correspond to and align with the first through hole of the base, a cover having a U shaped cross section and including multiple second apertures defined through the cover to correspond to the first apertures of the base, a second recess defined in a bottom face of the cover to correspond to the first recess of the base and to receive therein a sliding plate and a second through hole defined through a bottom face defining the second recess to correspond to the first hole of the guiding plate and the first through hole of the base, the sliding plate having a second hole defined to correspond to and align with the first hole, a driving element including a head rested on top of the cover and having thereon a groove, a cam extending from a bottom of the head to abut an inner periphery of the second through hole to move the cover to move in relation to the base and a rod formed on a bottom of the cam to extend through the second through hole, the second hole, the first hole and the first through hole to combine with a disk, wherein the improvements comprise: the guiding plate has two guiding bosses respectively formed on the guiding plate and separated by the first hole, the sliding plate has two receiving slits defined in a bottom face of the sliding plate to receive therein the two guiding bosses of the guiding plate so as to ensure smooth and un-tilted movement of the cover relative to the base.