Patent ID: 7190591

Claim:
A heat sink assembly placing onto a circuit board comprising: a heat sink deposited on one side of the circuit board; a clip attached to the other side of the circuit board, the clip comprising: a pressing portion pressing against the circuit board; first and second locking portions respectively extending from opposite ends of the pressing portion, the second locking portion defining a positioning groove; a connecting portion movably inserted in the positioning groove; a clamping portion defining a cutout therein, the clamping portion connected with the second locking portion via the connecting portion; and a pair of mounting elements extending through the heat sink and the circuit board; wherein one of the mounting elements engages with the heat sink and the first locking portion, and wherein the other one of the mounting elements engages with the heat sink and extends through the positioning groove and the cutout of the clamping portion and engages with the clamping portion.