Probe card assembly for electronic device testing with DC test resource sharing
First Claim
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1. A probe card assembly comprising:
- an electrical interface to a plurality of DC channels to a tester;
a plurality of probes disposed to contact directly test points on one or more electronic devices to be tested; and
a first signal router configured to switch selectively connection of a first one of the DC channels among each one of a plurality of first ones of the probes, wherein the signal router can connect the first DC channel to each one of first probes without simultaneously connecting the first DC channel to the others of the first probes.
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Abstract
A test system can include contact elements for making electrical connections with test points of a DUT. The test system can also include a DC test resource and a signal router, which can be configured to switch a DC channel from the DC test resource between individual contact elements in a group of contact elements.
65 Citations
11 Claims
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1. A probe card assembly comprising:
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an electrical interface to a plurality of DC channels to a tester; a plurality of probes disposed to contact directly test points on one or more electronic devices to be tested; and a first signal router configured to switch selectively connection of a first one of the DC channels among each one of a plurality of first ones of the probes, wherein the signal router can connect the first DC channel to each one of first probes without simultaneously connecting the first DC channel to the others of the first probes. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A probe card assembly comprising:
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an electrical interface to a plurality of DC channels to a tester; a plurality of probes disposed to contact directly test points on one or more electronic devices to be tested; a signal router configured to connect one of the DC channels through a plurality of switches to each of the probes in a group of a plurality of the probes wherein the signal router can disconnect the one of the DC channels from one of the probes in the group of the probes without simultaneously disconnecting the one of the DC channels from the other of the probes in the group of the probes; a plurality of current sensors each configured to sense a level of current flowing between one of the probes in the group of probes and the DC channel. - View Dependent Claims (8, 9, 10, 11)
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Specification