Effective shield structure for improving substrate isolation of analog circuits from noisy digital circuits on a system-on-chip (SOC)
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United States of America Patent
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Jul 12, 2011
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N/A
app pub date -
Dec 9, 2008
filing date -
Dec 9, 2008
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Abstract
An integrated circuit (IC) is disclosed to include a central area of the IC that is partitioned into a first section containing at least one digital circuit and a second section containing at least one analog circuit; and a guard strip (or shield) that is within the central area and that is positioned within between the digital circuit and the analog circuit. The shield or guard strip comprises of n-well and p-tap regions that separate digital and analog circuits.
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