US Patent 10566313 Integrated circuit chip carrier with in-plane thermal conductance layer

An integrated circuit (IC) chip carrier includes an IC chip electrically connected to an IC chip carrier by a plurality of chip-carrier contacts, a cover thermally connected the IC chip upper surface, and an in-plane thermal conductance (ITC) layer upon the IC chip carrier between the IC chip carrier and the IC chip. The ITC layer includes an extension tab connected to a vertical side surface of the cover. Heat is transferred vertically from the IC chip to the cover. Heat is also transferred vertically from the IC chip to the ITC layer. Heat is also transferred within the ITC layer through the ITC layer basal plane(s). The ITC layer basal plane(s) are positioned horizontally where the ITC layer is between the IC chip and the IC chip carrier. The ITC layer basal planes are positioned vertically where the extension tab contacts the vertical side surface of the cover.