Active solid-state devices (e.g. – transistors – solid-state diode – With shielding
Reexamination Certificate
2007-02-06
2009-06-23
Nguyen, Thinh T (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
With shielding
C257S678000
Reexamination Certificate
active
07550826
ABSTRACT:
A field hardened industrial device is described with a housing of the device having electrically conductive walls surrounding a cavity with an open end. An electronics assembly is adapted to fit within the cavity. The device includes a circuit card assembly, which is a multi-layered printed wiring board with pass-through electrical connections and an embedded ground plane electrically coupled to the housing to shield the electronics assembly from electromagnetic interference and to provide environmental protection to the electronics assembly.
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McGuire Chad M.
Orth Kelly M.
Nguyen Thinh T
Rosemount Inc.
Westman Champlin & Kelly P.A.
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