Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2007-07-03
2007-07-03
Reichard, Dean A. (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
Reexamination Certificate
active
11009408
ABSTRACT:
For electrical backplanes and the like, a power plane adaptation to improve the propagation of high-speed signals through clearances in an embedded power plane is disclosed. In exemplary embodiments, the power plane is segmented in a high-speed connector region, such that a portion of the metal layer that forms the power plane is retained in the high-speed connector region—but isolated from the power-delivery portion of the power plane. The isolated portion is connected to digital ground, and clearances are formed therein where high-speed signaling throughholes will pass through the region. In some embodiments, various attainable advantages include better manufacturability, better matching and control of high-speed signaling throughhole impedance, and improved noise isolation. Other embodiments are described and claimed.
REFERENCES:
patent: 4942400 (1990-07-01), Tarzaiski et al.
patent: 5748173 (1998-05-01), Gur
patent: 6229095 (2001-05-01), Kobayashi
Force 10 Networks, Inc.
Harris James E.
Reichard Dean A.
Semenenko Yuriy
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