Electrical Conduction Mechanisms of Barium-Titanate-Based Thick-Film Capacitors

Electrical characteristics, including degradation, of high K ( \cong 500) barium-titanate-based thick-film capacitors were studied. The leakage current of thick-film capacitors made from Ag/Pd thick-film conducting paste and high K dielectric has shown ohmic and super-ohmic (3/2 power voltage depend...

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Bibliographic Details
Published inIEEE transactions on components, hybrids, and manufacturing technology Vol. 10; no. 2; pp. 274 - 282
Main Authors In Yoo, Burton, L., Stephenson, F.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.06.1987
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Capacitors
Degradation
Electrodes
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Fabrication
Grain boundaries
High K dielectric materials
High-K gate dielectrics
Leakage current
Temperature dependence
Voltage
Degradation
Barium
Thick film
Humidity
Titanium
Leakage current
Polarity inversion
Models
Capacitor
Activation energy
Electrical characteristic
Grain boundary
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Summary:Electrical characteristics, including degradation, of high K ( \cong 500) barium-titanate-based thick-film capacitors were studied. The leakage current of thick-film capacitors made from Ag/Pd thick-film conducting paste and high K dielectric has shown ohmic and super-ohmic (3/2 power voltage dependence) type behavior. Voltage independence of thermal activation energy and time dependence of leakage current were also observed. A healing effect by reversal of bias polarity and the effect of humidity on leakage current have also been studied. Models for leakage currents that increase with time are presented.
ISSN:0148-6411
1558-3082
DOI:10.1109/TCHMT.1987.1134731