Integrated circuit device that can suppress undesired inter-device effects

When forming first and second circuits on a semiconductor substrate, an isolation region is provided between the first and second circuits by embedding a conductor in the semiconductor substrate. Also, an output node of a low impedance voltage output circuit that provides a fixed voltage at low impe...

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Bibliographic Details
Main Authors ITOH JUNJI, FUKUDA TAKESHI
Format Patent
LanguageEnglish
Published 15.07.2003
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:When forming first and second circuits on a semiconductor substrate, an isolation region is provided between the first and second circuits by embedding a conductor in the semiconductor substrate. Also, an output node of a low impedance voltage output circuit that provides a fixed voltage at low impedance is connected to the isolation region. In this way, a noise current caused by high-frequency noise generated from the first or second circuit flows into the low impedance voltage output circuit. Hence leakage of noise signals between the circuits can be suppressed.
Bibliography:Application Number: US20020136930