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Can I read Local Capacitance Analysis Using a Modified Deep Level Spectrometer on EtoBox?
Local Capacitance Analysis Using a Modified Deep Level Spectrometer by László Dózsa; Štefan Lányi is a Physics and Astronomy article available to read on EtoBox.
What is Local Capacitance Analysis Using a Modified Deep Level Spectrometer about?
A bimorph-based xz scanner and an amplifier, increasing the capacitance and current measurement sensitivities 250-times and 1000-times, respectively, have been built into the cryostat of a deep level transient spectrometer. The setup renders point by point local capacitance-voltage (C-V) at 1 MHz and dc currentvoltage (I-V) measurements using a sharp tip placed into tunnelling distance from the surface of analysed semiconductor sample. The C-V measurements revealed a strong dependence on the probe/sample separation, ranging from MOS-type at small tunnelling currents to Schottky-type at currents exceeding approximately 10 pA. Marked hysteresis was observed, indicating changes of surface state occupancy. These slow states are otherwise hardly detected, since they are absent in semiconductor/metal contacts and in MOS structures they would become mostly passivated interface states. The setup enables calibrated, fixed zero level capacitance measurement. The stray capacitance is the dominant component of the measured capacitance but it can be easily discarded.
Who reads Local Capacitance Analysis Using a Modified Deep Level Spectrometer?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- László Dózsa; Štefan Lányi
- Publisher
- Walter de Gruyter GmbH
- Published
- 2012
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)