Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic Substrate

Multilayer ceramic capacitors designed to be embedded in a low temperature co-fired ceramic substrate have been successfully fabricated. Low and high value capacitors were respectively embedded in the low K multilayer substrate and high K dielectric layer. The buried capacitor has a capacitance dens...

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Main Authors: Y. C. Chan, G. Y. Li
Format: Article
Language:English
Published: Wiley 1998-01-01
Series:Active and Passive Electronic Components
Subjects:
Online Access:http://dx.doi.org/10.1155/1998/25127
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author Y. C. Chan
G. Y. Li
author_facet Y. C. Chan
G. Y. Li
author_sort Y. C. Chan
collection DOAJ
description Multilayer ceramic capacitors designed to be embedded in a low temperature co-fired ceramic substrate have been successfully fabricated. Low and high value capacitors were respectively embedded in the low K multilayer substrate and high K dielectric layer. The buried capacitor has a capacitance density range (1 kHz) from about 220 pF/cm2 to 30 nF/cm2. The design took material compatibility and shrinkage characteristics specifically into account. The effects of heating rate and peak temperature holding time on the densification of the laminate were studied. The scanning electron micrograph revealed no evident cracking in the fired components. The electrical properties of the buried capacitors such as dissipation factor, insulation resistance and breakdown voltage were studied and found to be good for device application. The temperature dependence of the dissipation factor and coefficient of capacitance for the buried capacitor was also studied.
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spelling doaj-art-9b3de3caf94d4e8a8f6994552d6ab42d2025-08-20T02:20:26ZengWileyActive and Passive Electronic Components0882-75161563-50311998-01-0120421522410.1155/1998/25127Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic SubstrateY. C. Chan0G. Y. Li1Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong KongDepartment of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong KongMultilayer ceramic capacitors designed to be embedded in a low temperature co-fired ceramic substrate have been successfully fabricated. Low and high value capacitors were respectively embedded in the low K multilayer substrate and high K dielectric layer. The buried capacitor has a capacitance density range (1 kHz) from about 220 pF/cm2 to 30 nF/cm2. The design took material compatibility and shrinkage characteristics specifically into account. The effects of heating rate and peak temperature holding time on the densification of the laminate were studied. The scanning electron micrograph revealed no evident cracking in the fired components. The electrical properties of the buried capacitors such as dissipation factor, insulation resistance and breakdown voltage were studied and found to be good for device application. The temperature dependence of the dissipation factor and coefficient of capacitance for the buried capacitor was also studied.http://dx.doi.org/10.1155/1998/25127capacitorembeddedlow temperature co-fired ceramic.
spellingShingle Y. C. Chan
G. Y. Li
Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic Substrate
Active and Passive Electronic Components
capacitor
embedded
low temperature co-fired ceramic.
title Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic Substrate
title_full Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic Substrate
title_fullStr Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic Substrate
title_full_unstemmed Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic Substrate
title_short Fabrication and Characterization of Multilayer Capacitors Buried in a Low Temperature Co-Fired Ceramic Substrate
title_sort fabrication and characterization of multilayer capacitors buried in a low temperature co fired ceramic substrate
topic capacitor
embedded
low temperature co-fired ceramic.
url http://dx.doi.org/10.1155/1998/25127
work_keys_str_mv AT ycchan fabricationandcharacterizationofmultilayercapacitorsburiedinalowtemperaturecofiredceramicsubstrate
AT gyli fabricationandcharacterizationofmultilayercapacitorsburiedinalowtemperaturecofiredceramicsubstrate