Multilayer ceramic circuit boards including embedded components

Details Multilayer ceramic circuit boards including embedded components Multilayer ceramic circuit boards including embedded components

1998-02-27

2000-04-25

Kincaid, Kristine

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361320, 3613212, 156 89, 29831, H01G 406, H01G 420

Patent

active

060551518

ABSTRACT:
Embedded passive components such as capacitors are formed in multilayer ceramic circuit boards by screen printing a component precursor compound ink sandwiched between conductor ink layers onto a green tape stack and covering the component ink layer with one or two green tape layers, aligning and laminating the green tapes and firing. Capacitor inks are made from dielectrics chosen from barium titanate, titanium oxide and lead-magnesium-niobate. The green tapes are made of a mixture of a crystallizing glass, a non-crystallizing glass and an oxide filler which does not shrink in the x and y dimensions during firing mounted on a metal support. Thus the embedded components can be made to close tolerances.

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