Collar for electrically grounding a heat sink for a computer component

摘要

To reduce the impedance of the ground path from a heat sink to a ground pad on a printed circuit board, and thus reduce electromagnetic interference, an electrically conductive collar is arranged around an opening in the heat sink. The electrically conductive collar may include an internal extension, such that the internal extension abuts the conducting member passed through the electrically conductive collar and the opening in the heat sink to electrically ground the heat sink to the ground pad on the printed circuit board.