Printed circuit board with buried capacitor

A printed circuit board (PCB) has a core substrate 30, 'build-up' layers 40A, 40B and a planar capacitor 20, which is buried in a recess 31 in the core substrate. The capacitor has anode and cathode electrodes (21L, 22, Fig 2) on the same side and these are positioned under vias 41A in the...

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Bibliographic Details
Main Authors EIJI MATSUNAGA, SETSUO NOGUCHI, SADAMU TOITA, KOHTAROH TAKAHASHI, YOSHIHIKO SAIKI, SATOSHI ARAI
Format Patent
LanguageEnglish
Published 05.10.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
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Summary:A printed circuit board (PCB) has a core substrate 30, 'build-up' layers 40A, 40B and a planar capacitor 20, which is buried in a recess 31 in the core substrate. The capacitor has anode and cathode electrodes (21L, 22, Fig 2) on the same side and these are positioned under vias 41A in the 'build-up' layers. Also claimed is the method of manufacturing the PCB and the capacitor per se.
Bibliography:Application Number: GB20050005436