<div class="content"><p><b>Abstract</b><br />An apparatus for mounting a heat sink to a chip package such as a BGA type chip package or the like is disclosed. In an exemplary embodiment, ground bumps are formed on the die substrate of the chip package and on the heat mating surface of the heat sink to be attached to the package. The ground bumps formed on the die protrude into the body of dimples formed in the body of the chip encapsulation package to make thermal/electrical ground contact with the ground bumps formed on the heat mating surface of the heat sink for electrically grounding the heat sink.</p><p><a href="http://www.google.com/patents/pdf/Heat_sink_with_chip_die_EMC_ground_inter.pdf?id=bZILAAAAEBAJ&output=pdf&sig=O8GyaVMUXsHA4onQV4q5wOIcX0A"><font color="#336699">Heat sink with chip die EMC ground interconnect(美国EMC技术专利)</font></a></p></div>