High performance probe system
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United States of America Patent
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Jun 28, 2005
Issued Date -
N/A
app pub date -
May 5, 2003
filing date -
May 8, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A probe system for providing signal paths between an integrated circuit (IC) tester and input/output, power and ground pads on the surfaces of ICs to be tested includes a probe board assembly, a flex cable and a set of probes arranged to contact the IC's I/O pads. The probe board assembly includes one or more rigid substrate layers with traces and vias formed on or within the substrate layers providing relatively low bandwidth signal paths linking the tester to probes accessing some of the IC's pads. The flex cable provides relatively high bandwidth signal paths linking the tester to probes accessing others of the IC's pads. A flex strip may alternatively be disposed behind a substrate with probes.
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