A combination heat sink and electromagnetic interference shield device is
provided for a point of distribution card of a television receiver. The
combination POD card heat sink and EMI shield device includes a combined
thermal transfer and electromagnetic conduction portion that provides
thermal and EM coupling or contact between an enclosure of the POD card
and the metal control module enclosure of a television. Configured
metalwork of the combination heat sink and EMI shield device provides
conduction of heat from the POD card to provide the heat sink and short
circuiting of developed currents to provide EMI shielding. The combined
thermal transfer and EM conduction portion provides a low impedance
connection between the POD card and the surrounding module metalwork of
the television. This low impedance path provides a short for circulating
current in the exposed metalwork that diminishes or essentially
eliminates EMI. The present invention allows a POD card to operate at
room temperature without the need for a cooling fan through the heat sink
metalwork.