Work function calibration of a non-contact voltage sensor

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United States of America Patent

PATENT NO 9625557
SERIAL NO

14285059

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Abstract

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A method and a system for calibrating the work function or surface potential of a non-contact voltage sensor probe tip. The method includes preparing one or more reference sample surfaces and a reference non-contact voltage sensor probe tip to have stable surface potentials, measuring the voltage between the reference samples and the reference sensor probe tip, measuring the voltage between a point on a non-reference sample surface and the reference sensor probe tip, measuring the voltage between the same point on the non-reference sample surface and a non-reference non-contact voltage sensor probe tip, and determining a surface potential correction factor for the non-reference, non-contact voltage sensor.

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Patent Owner(s)

Patent OwnerAddress
QCEPT INVESTMENTS LLCC/O MOSLEY VENTURES 75 FIFTH STREET NW SUITE 328 ATLANTA GA 30308

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Soss, Steven R Cornwall, US 23 223
Steele, M Brandon Decatur, US 12 66

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