Active probe card
First Claim
1. An active probe card for testing an integrated circuit comprising:
- a circuit board;
test circuitry mounted on said circuit board having a plurality of test signal ports, said test circuitry including active circuit means for driving digital test signals and sample digital test signal response to and from said integrated circuit;
means, integral to said active probe card, for directly conductively connecting said plurality of test signal ports to an array of connectors of the integrated circuit under testsecond connecting means, integral to said active probe card, for connecting second test signals to said test circuitry; and
said test circuitry further includes test signal selection means for selecting serial or second test signals to apply to said integrated circuit.
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Accused Products
Abstract
An active probe card having integral test circuitry directly attached to the probe card. The probe card includes a circuit board wherein the test circuitry is mounted on the circuit board. In an alternate embodiment, the probe card also includes an on-board signal selection device. The test circuitry applies test signals through probe pins to integrated circuit input pads and samples the test signal responses at integrated circuit output pads. The orientation of the test circuitry attached to the each pin, i.e., input or output, is field programmable. The test circuitry may use boundary scan testing methodology. The active probe card'"'"'s test circuitry may implement the test methodology of IEEE standard 1149.1 or analog test circuitry to determine the ac and dc parametric characteristics of the integrated circuit. The active probe card may include terminals to which Automatic Test Equipment (ATE) can be attached.
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Citations
11 Claims
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1. An active probe card for testing an integrated circuit comprising:
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a circuit board; test circuitry mounted on said circuit board having a plurality of test signal ports, said test circuitry including active circuit means for driving digital test signals and sample digital test signal response to and from said integrated circuit; means, integral to said active probe card, for directly conductively connecting said plurality of test signal ports to an array of connectors of the integrated circuit under test second connecting means, integral to said active probe card, for connecting second test signals to said test circuitry; and said test circuitry further includes test signal selection means for selecting serial or second test signals to apply to said integrated circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification