Surface acoustic wave filter device

In an elastic surface wave device according to this invention, an elastic surface wave element including a first and a second two-port surface acoustic wave filter and a one-port surface acoustic wave filter with a single inter-digital transducer is connected via bumps to electrodes formed on a hous...

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Bibliographic Details
Main Authors KAWASE MINORU, KOSHINO MASAYOSHI, EBATA YASUO
Format Patent
LanguageEnglish
Published 12.06.2003
Edition7
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Summary:In an elastic surface wave device according to this invention, an elastic surface wave element including a first and a second two-port surface acoustic wave filter and a one-port surface acoustic wave filter with a single inter-digital transducer is connected via bumps to electrodes formed on a housing by face down bonding techniques. The housing has an opening section for a ground terminal electrode in a part facing the one-port surface acoustic wave filter.
Bibliography:Application Number: US20030347449