An improved and new process of fabricating high dielectric constant MIM
capacitors. These high dielectric constant MIM capacitor met all of the
stringent requirements needed for both for both RF and analog circuit
applications. For the high dielectric constant MIM capacitor, the metal
is comprised of copper electrodes in a dual damascene process. The
dielectric constant versus the total thickness of super lattices is
controlled by the number of layers either 4/4, 2/2, and 1/1 artificial
layers. Hence thickness of the film can be easily controlled. Enhancement
of dielectric constant is because of interface. Dielectric constants near
900 can be easily achieved for 250 Angstrom thick super lattices. MBE,
molecular beam epitaxy or ALCVD, atomic layer CVD techniques is used for
this type layer growth process.