Substrates, systems, and devices including structures for suppressing power and ground plane noise, and methods for suppressing power and ground plane noise
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United States of America Patent
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Aug 17, 2010
Grant Date -
Nov 8, 2007
app pub date -
May 8, 2006
filing date -
May 8, 2006
priority date (Note) -
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Abstract
Substrates having power and ground planes, such as, for example, printed circuit boards, include at least one noise suppression structure configured to suppress electrical waves propagating through at least one of a power plane and a ground plane. The noise suppression structure may include a power plane extension that extends from the power plane generally toward the ground plane, and a ground plane extension that extends from the ground plane generally toward the power plane. The ground plane extension may be separated from the power plane extension by a distance that is less than the distance separating the power and ground planes. Electronic device assemblies and systems include such substrates. Methods for suppressing noise in at least one of a power plane and a ground plane include providing such noise suppression structures between power and ground planes.
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