Patent ID: 8581390

Claim:
A semiconductor assembly, comprising: a semiconductor device, comprising: a semiconductor substrate; an interconnect region over the semiconductor substrate; a heat source having at least a portion in the substrate; a pillar level on the interconnect region, comprising: a plurality of pillar contacts on the interconnect region having a first diameter; and a plurality of radial heat conductors on the interconnect region wherein each radial heat conductor of the plurality of radial heat conductors has at least a portion overlying the heat source and wherein each radial heat conductor of the plurality of radial heat conductors extends its length radially from the heat source, wherein each length is at least twice as great as the first diameter; and a connecting structure comprising: a connecting substrate; a first corresponding pillar contact, supported by the substrate, in contact with a first pillar contact of the plurality of pillar contacts; and a first corresponding heat conductor, supported by the substrate, in contact with a first radial heat conductor of the plurality of radial heat conductors.