Methods of forming front-end-of the line (FEOL) capacitors such as polysilicon-polysilicon
capacitors and metal-insulator-silicon capacitors are provided that are capable
of incorporating a high-dielectric constant (k of greater than about 8) into the
capacitor structure. The inventive methods provide high capacitance/area devices
with low series resistance of the top and bottom electrodes for high frequency
responses. The inventive methods provide a significant reduction in chip size,
especially in analog and mixed-signal applications where large areas of capacitance
are used.