Electrical guard structures for protecting a signal trace from electrical interference
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United States of America Patent
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Mar 6, 2012
Grant Date -
Jun 19, 2008
app pub date -
Dec 14, 2006
filing date -
Dec 14, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of fabricating a guard structure can include depositing an insulating material over at least a portion of electrical signal conductors disposed on a component of a probe card assembly, and depositing an electrically conductive material onto the insulating material and at least a portion of electrical guard conductors disposed on the component of the probe card assembly. Each signal conductor can be disposed between a pair of the guard conductors. The probe card assembly can include a plurality of probes disposed to contact an electronic device to be tested. The signal conductors can be part of electrical paths within the probe card assembly to the probes.
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