An interconnect circuit comprising: an electro-thermal conductor comprising a thermal conductor portion and a first electrical conductor portion, wherein the thermal conductor portion is electrically isolated from the first electrical conductor portion by a gap defining a boundary of the first electrical conductor portion, wherein the thermal conductor portion and the first electrical conductor portion have an identical composition and each of the thermal conductor portion and the first electrical conductor portion comprises a base sublayer and a surface sublayer having a different composition than the base sublayer, wherein the base sublayer comprises aluminum, and wherein the thermal conductor portion and the first electrical conductor portion have an identical thickness of at least 100 micrometers; a first adhesive; a first insulator adhered to the surface sublayer of the electro-thermal conductor using the first adhesive, wherein the first insulator is electrically insulating; wherein the first insulator supports the thermal conductor portion and the first electrical conductor portion relative to each other and maintains the gap between the thermal conductor portion and the first electrical conductor portion, and wherein the first insulator comprises a first opening and a second opening, wherein the first opening exposes a first contact portion of the first electrical conductor portion; wherein the second opening exposes a second contact portion of the thermal conductor portion; wherein the first adhesive remains substantially between the first insulator and the electro-thermal conductor without bleeding significantly into the first contact portion 125 and the second contact portion; a second adhesive, which is a thermally-conductive electrically-insulating adhesive, the second adhesive comprising thermally-conductive electrically-insulating particles and being adhered to the electro-thermal conductor such that the electro-thermal conductor is disposed between the first adhesive and the second adhesive; wherein the second adhesive is different from the first adhesive, and the second adhesive fills the gap between the thermal conductor portion and the first electrical conductor portion; wherein a footprint of the thermal conductor portion is substantially greater than a footprint of the first electrical conductor portion; and a heat sink adhered to the second adhesive such that the second adhesive is disposed between the heat sink and the electro-thermal conductor, wherein the heat sink is thermally coupled to the electro-thermal conductor by the second adhesive. an electro-thermal conductor comprising a thermal conductor portion and a first electrical conductor portion, wherein the thermal conductor portion is electrically isolated from the first electrical conductor portion by a gap defining a boundary of the first electrical conductor portion, wherein the thermal conductor portion and the first electrical conductor portion have an identical composition and each of the thermal conductor portion and the first electrical conductor portion comprises a base sublayer and a surface sublayer having a different composition than the base sublayer, wherein the base sublayer comprises aluminum, and wherein the thermal conductor portion and the first electrical conductor portion have an identical thickness of at least 100 micrometers; a first adhesive; a first insulator adhered to the surface sublayer of the electro-thermal conductor using the first adhesive, wherein the first insulator is electrically insulating; wherein the first insulator supports the thermal conductor portion and the first electrical conductor portion relative to each other and maintains the gap between the thermal conductor portion and the first electrical conductor portion, and wherein the first insulator comprises a first opening and a second opening, wherein the first opening exposes a first contact portion of the first electrical conductor portion; wherein the second opening exposes a second contact portion of the thermal conductor portion; wherein the first adhesive remains substantially between the first insulator and the electro-thermal conductor without bleeding significantly into the first contact portion 125 and the second contact portion; a second adhesive, which is a thermally-conductive electrically-insulating adhesive, the second adhesive comprising thermally-conductive electrically-insulating particles and being adhered to the electro-thermal conductor such that the electro-thermal conductor is disposed between the first adhesive and the second adhesive; wherein the second adhesive is different from the first adhesive, and the second adhesive fills the gap between the thermal conductor portion and the first electrical conductor portion; wherein a footprint of the thermal conductor portion is substantially greater than a footprint of the first electrical conductor portion; and a heat sink adhered to the second adhesive such that the second adhesive is disposed between the heat sink and the electro-thermal conductor, wherein the heat sink is thermally coupled to the electro-thermal conductor by the second adhesive.