Clip for heat sink

A heat sink assembly comprising:

• a heat-generating device;
• a substrate supporting the heat-generating device thereon, the substrate defining a pair of first and second through holes therein, the holes being located outside opposing corners of the chip;
• a heat sink mounted on the chip, the heat sink comprising a base and a plurality of fins extending from the base, the fins forming a plurality of grooves;
• and
• a clip comprising a body received in a central groove of the heat sink for pressing the heat sink against a heat-generating device., and a pair of first and second arms engaged with the through holes of the substrate for securing the heat sink to the substrate, the body integrally forming a loop to receive a fin of the heat sink, for enhancing engagement of the clip with the heat sink.

An electrical assembly, comprising:

• a substrate defining two holes therein;
• a chip mounted on the substrate between the two holes;
• a heat sink mounted on the chip, said heat sink having a plurality of upwardly extending fins arranged in a plurality of rows;
• and
• a clip made of wire metal and comprising:
• a substantially linear body received in the heat sink at a position between two rows of the fins;
• a loop formed about a middle of the body, said loop fitting around one of fins at the two rows;
• a pair of arms extending oppositely from two ends of the body, respectively;
• and
• a hook formed at a free end of each of the arms, said hook being forcedly fitted into a corresponding hole of the substrate whereby the clip exerting a pressing force against the heat sink toward the chip to cause the heat sink to have an intimate contact with the chip.