Abstract: An electrical connector assembly (100) made in accordance with a preferable embodiment of the present invention comprises an electrical socket (20) with a plurality of contacts received therein, an IC module (30) mounted onto the electrical socket (20) so as to make electrical connection therebetween, a heat sink assembly (40) pressing on the IC module (30) and including a heat spreader (401), and a clip (50) fastening the heat sink assembly (40) above the IC module (30). The IC module (30) comprises a substrate (301) and at least one die (302) attached on a top surface of the substrate (301). The clip (50) has a set of first fingers (504) for pressing the die (301) of the IC module (30) and a set of second fingers (505) for pressing the substrate (301) of the IC module (30).

Abstract: Provided a clip set (50) for pressing a CPU toward LGA contacts of a CPU socket comprises, a rigid body having an elongate base (501) with upper and lower edges. A set of first pressing finger (502) extends from the upper edge traversally and away from the base. Each of the first pressing fingers includes a first pressing pad located at a first plane. A set of second pressing finger (503) extends from and away from the base, and includes a second pressing pad located at a second plane differential to the first plane. The set of first and second pressing fingers are dimensioned to be located in two different levels so as to assert downward pressure to a die (302) of the CPU and a substrate (301) of the CPU, respectively.