Influence of Ac-Signal Amplitude on the Dielectric Properties of Al-Tiw-Ptsi/N-Si Schottky Diodes
DOI:
https://doi.org/10.47363/JMSMR/2024(5)181Keywords:
Silicide–Silicon Contact, Ptsi/N-Si Schottky Diodes, Dielectric Properties, Dielectric Loss, Electric Modulus, Ac Electrical Conductivity, Power DissipatedAbstract
Influence of ac-signal amplitude on the dielectric properties of Al-TiW-PtSi/n-Si Schottky diode has been investigated at the room temperature and bias voltage in the range of -2V÷4V, when the amplitude of test signal (500 kHz) changed from 5mV to 1V. By the using impedance method have been obtained real ( εꞌ ) and imaginary (εꞌ) parts of dielectric constants and electric modul ( Mꞌ and Mꞌꞌ ) , loss tangent ( tanδ ), ac electrical conductivity ( σac ), the series resistance ( Rs ), On all dependences on voltage and amplitude of ac-signal , there is a jump in the value of the parameter in the range of voltage values 1-2V and 200mV It can be concluded that, at certain values, the amplitude of the ac-signal can significantly affect the interfacial polarization even at high frequencies.