Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/81204
Title: Some characteristics of the zero-temperature-coefficient capacitance of an MOS capacitor in accumulation
Authors: Ling, C.H. 
Issue Date: May-1991
Source: Ling, C.H. (1991-05). Some characteristics of the zero-temperature-coefficient capacitance of an MOS capacitor in accumulation. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers 30 (5) : 917-920. ScholarBank@NUS Repository.
Abstract: Theoretical consideration shows that the silicon component of the MOS capacitor exhibits a zero temperature coefficient of capacitance for a silicon surface biased in accumulation. A unique surface potential, which can be expressed in terms of material properties, exists at which the surface capacitance becomes independent of temperature. Capacitance-voltage plots for temperatures within 50°C of room temperature provide experimental evidence in support of the theory. A gate bias Vx corresponding to this unique surface potential has been observed. However, a slight broadening of Vx into a small spot extending some 20 mV generally results, and has been shown to be due to the presence of the gate oxide capacitance. Vx is relatively constant over the range of signal frequencies, 10-100 kHz, but varies substantially at higher frequencies. Vx also shows a linear dependence on the gate oxide thickness decreasing at the rate of approximately 1 V/2000 A.
Source Title: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
URI: http://scholarbank.nus.edu.sg/handle/10635/81204
ISSN: 00214922
Appears in Collections:Staff Publications

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