A disk shaped thermal bridge element for use in a semiconductor package to conduct heat from a device to a cold plate, which disk element has a bulged shape with a first set of inwardly extending slots and a second set of outwardly extending slots emanating from the center of the disk....http://www.google.com/patents/US4415025?utm_source=gb-gplus-sharePatent US4415025 - Thermal conduction element for semiconductor devices