Stock material or miscellaneous articles – Composite – Of epoxy ether
Reexamination Certificate
2008-06-03
2008-06-03
Loke, Steven (Department: 2818)
Stock material or miscellaneous articles
Composite
Of epoxy ether
C428S209000, C361S305000, C361S303000, C361S312000
Reexamination Certificate
active
07381468
ABSTRACT:
A polymer/ceramic composite paste for an embedded capacitor includes an organic solvent, a ceramic powder having a particle diameter of not more than 20 μm dispersed in the organic solvent, a polymer and a hardener. The use of the polymer/ceramic composite paste enables the formation of a dielectric layer having a high dielectric constant. The polymer/ceramic composite paste can be applied by a screen printing technique and is planarized to locally form a polymer/ceramic composite dielectric layer having a thickness of, e.g., up to 20 μm on a desired region. Accordingly, electrical parasitics resulting from the formation of a capacitor on unwanted regions can be reduced, and the capacitance error can be reduced.
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Cho, S.-D. et al., “Study on the Epoxy/BaTIO3Embedded Capacitor Films Newly Developed for PWB Applications,”52nd Electron. Comp. Technol. Conf. Proc. 28-31:504-509 (2002) Institute of Electrical and Electronics Engineers, Inc.
Cho Sung Dong
Jang Kyung Woon
Paik Kyung Wook
Goodwin David
Korea Advanced Institute of Science and Technology
Loke Steven
Sterne Kessler Goldstein & Fox P.L.L.C.
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