Patent ID: 7232332

Claim:
A heat sink assembly comprising: a circuit board; a processor mounted onto the circuit board; an electromagnetic shielding member located adjacent a side of the circuit board having the processor mounted thereto; a stiffening member located adjacent a side of the circuit board opposite the side having the processor mounted thereto, wherein the electromagnetic shielding member is releasably attached to the circuit board and to the stiffening member by a sprung catch; and a heat sink in thermal contact with the processor at a side of the processor opposite the circuit board, wherein the heat sink is held in thermal contact with the processor by a plurality of threaded members, wherein each threaded member includes a load spring and a shoulder, wherein the heat sink is biased toward the processor by each of the load springs to hold the heat sink against the processor, wherein each of the shoulders is an unthreaded portion of the threaded member configured to prevent over-tightening of the threaded member and damage to the processor, circuit board, and stiffening member; wherein the electromagnetic shielding member is configured to provide a spring force between the circuit board and the heat sink, counter directional to the bias from the load spring; and wherein the circuit board and the stiffening member each comprises a slot configured to receive the sprung catch.