A Form of BST With Small Dependence of Dielectric Constant on Voltage

The main applications for integrated high density capacitors are DAM storage capacitors and capacitors for RF and mixed signal chips; bypass capacitors, feedthrough capacitors, and capacitors for switched capacitor filters and ote rfilters. For the second group of applications the main considerations are capacitance per unti area, leakage current, breakdown field, loss tangent, variation of dielectric constant with temperature, and for those cases where inter-modulation distortion or harmonic distortion must be minimized, voltage dependence of the capacitance is also important.