Probe card fixture
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 19, 1990
Grant Date -
N/A
app pub date -
Sep 20, 1988
filing date -
Sep 20, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A probe card fixture (20) precisely controls the movement of a probe card (44) relative to a circuit (30) to be tested. The fixture (20) includes a carriage (42) movable to and from the circuit by four lead screws (237) all simultaneously driven by a rigid drive link (300). The probe card (44) is mounted to the carriage (42) by mechanisms that provide for adjustment of the orientation of the probe card (44) to correspond to the orientation of the particular batch of circuits (30) to be tested. A programmable control system (350) controls the lead screw drive to minimize travel of the carriage (42), thereby increasing throughput.
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