Probe Card
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United States of America Patent
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Issued Date -
Oct 20, 2016
app pub date -
Apr 13, 2016
filing date -
Apr 14, 2015
priority date (Note) -
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Abstract
A probe card for transmitting power signals from a tester to two devices under test (DUTs) is provided, which includes two signal pins, two power conducting circuits, and at least a matching part. The signal pins are made of conductive materials, wherein one end of the signal pin contacts one of the DUTs. The two power conducting circuits are electrically connected to the two signal pins respectively to transmit the power signals to the DUTs. One of two ends of the power conducting circuits is connected to the signal pins; the other end of the power conducting circuits is electrically connected to the tester. The matching part is electrically connected to the power conducting circuit in parallel to lower a resistance of the power conducting circuit below a predetermined value, or to lower a percentage error of resistance of the power conducting circuit below a predetermined percentage error.
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