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PSPICE Analysis of the Scanning Capacitance Microscope Sensor

Published

Author(s)

Gyoung H. Buh, Chi Tran, Joseph Kopanski

Abstract

A detailed analysis of the capacitance sensor from a scanning capacitance microscope (SCM) is presented. PSPICE circuit simulations are compared with experimental results. The general behavior of the SCM sensor and practical aspects of the sensor-tuning curve are described. It is found that a stray capacitance decreases the measurement sensitivity and causes the sensor high frequency voltage applied across the tip-sample to fall. We have also calculated and measured the delocalized dC/dV caused by stray capacitance, revealing that this background dC/dV must be accounted for in order to obtain the true localized dC/dV.
Proceedings Title
Proc., Seventh USJ
Conference Dates
April 27-May 1, 2003
Conference Location
Santa Cruz, CA, USA
Conference Title
Seventh International Workshop on Fabrication, Characterization, and Modeling of Ultra-Shallow Doping Profiles in Semiconductors

Keywords

doping profiles, PSPICE, scanning capacitance microscope, capacitance measurement

Citation

Buh, G. , Tran, C. and Kopanski, J. (2003), PSPICE Analysis of the Scanning Capacitance Microscope Sensor, Proc., Seventh USJ, Santa Cruz, CA, USA (Accessed April 25, 2024)
Created April 26, 2003, Updated October 12, 2021