Patent ID: 6944026

Claim:
A mounting assembly adapted for mounting a heat sink on an electronic package on a circuit board, the mounting assembly comprising: a retention module adapted to be mounted on the circuit board, the retention module comprising a pair of columns cooperatively defining a space therebetween adapted for accommodating the heat sink therein; and a retaining unit cooperating with the columns for securing the heat sink in said space, each of the retaining units comprising: a retaining clip comprising first and second legs releasably engaging with the columns respectively; and a pressing body attached to the retaining clip, the pressing body comprising a pressing portion disposed between the retaining clip and the heat sink, an operation portion disposed outside the retaining clip opposite to the pressing portion, and latching devices formed adjacent the operation portion; wherein upon pressing the operation portion toward the heat sink, the latching devices engage with the retaining clip to retain the pressing body in a locked position and to elastically deform the pressing body to thereby press the heat sink toward the electronic package.