Low frequency impedance measurement with source measure units

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United States of America Patent

PATENT NO 10677828
APP PUB NO 20180059157A1
SERIAL NO

15789995

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Abstract

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A method for measuring the impedance of a DUT having a capacitance of less than 1 pF includes applying a voltage or current signal to the DUT, the voltage or current signal including an AC component having a non-zero frequency of less than 1 kHz; monitoring a current or voltage signal, respectively, through the DUT in response to the voltage or current signal; digitizing the voltage signal and the current signal synchronously; and calculating the impedance from the digitized voltage and current signals.

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Patent Owner(s)

Patent OwnerAddress
KEITHLEY INSTRUMENTS LLC28775 AURORA ROAD SOLON OH 44139

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sobolewski, Gregory Seven Hills, US 29 126

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