Abstract: An electronic device includes: (i) first and second integrated circuit (IC) dies co-located on a surface of a substrate in proximity to each other, (ii) a heat sink disposed on the first and second IC dies, and (iii) a lid, which is disposed between the first IC die and the heat sink, and the lid is not disposed between the second IC die and the heat sink.

Abstract: A method may include forming a transistor on a substrate, the transistor including a gate, and forming a sacrificial spacer extending along an entirety of a thickness of the gate. A via layer is then formed over/about the gate. The sacrificial spacer is at least partially removed, leaving an air vent opening. An airgap spacer is formed in the dielectric layer by depositing another dielectric layer to close off the air vent opening. The airgap spacer is coincident with at least one sidewall of the gate and extends along an entirety of a thickness of the gate. Gate airgaps may also be provided over the gate. Other embodiments extend the gate and airgap spacer the full thickness of the dielectric layer thereabout. Other embodiments extend the airgap spacer over the gate.

Abstract: A method may include forming a transistor on a substrate, the transistor including a gate, and forming a sacrificial spacer extending along an entirety of a thickness of the gate. A via layer is then formed over/about the gate. The sacrificial spacer is at least partially removed, leaving an air vent opening. An airgap spacer is formed in the dielectric layer by depositing another dielectric layer to close off the air vent opening. The airgap spacer is coincident with at least one sidewall of the gate and extends along an entirety of a thickness of the gate. Gate airgaps may also be provided over the gate. Other embodiments extend the gate and airgap spacer the full thickness of the dielectric layer thereabout. Other embodiments extend the airgap spacer over the gate.