Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Sub-micron gap capacitor for measurement of breakdown voltage in air

Published

Author(s)

Emmanouel S. Hourdakis, Brian J. Simonds, Neil M. Zimmerman

Abstract

We have developed a new method for measuring the value of breakdown voltage in air for electrode separations from 400 nm to 45 'm. The electrodes used were thin film Au lines evaporated on sapphire. The resulting capacitors had an area of 80 'm by 80 'm. We demonstrate the ability to deduce the value of the separation of the plates by the value of the capacitance. The data acquired with this method do not agree with Paschen's law for electrode separations below 10 'm, as expected from previous experiments. Amongst the improvements of our method are the measurement of plate separation and the very small surface roughness ( avg. of 6 nm ). All data were taken at room temperature and atmospheric pressure.
Citation
Review of Scientific Instruments
Volume
77
Issue
034702-1
Created March 24, 2006, Updated January 27, 2020