Patent ID: 8633534

Claim:
An apparatus comprising: a substrate; a phonon-decoupling layer disposed directly on the substrate, wherein the phonon-decoupling layer comprises a material that lacks an oxygen source, that has a dielectric constant between 5.4 and 9.1, that has a phonon density of states significantly reduced versuses bulk silicon below 15 THz, and that has an electronic band gap above 4eV; a gate dielectric layer formed on the phonon-decoupling layer; a gate electrode formed on the gate dielectric layer; a pair of spacers formed on opposite sides of the gate electrode; a source region formed in the substrate subjacent to the phonon-decoupling layer; and a drain region formed in the substrate subjacent to the phonon-decoupling layer wherein said source region and said drain region are on opposite sides of said gate electrode.