Bumped semiconductor wafer or die level electrical interconnect
First Claim
Patent Images
1. A probe assembly to act as a temporary interconnect between terminals on an IC device and a test station, the probe assembly comprising:
- a substrate comprising a dielectric material;
a plurality of conductive stud bumps arranged on a first surface of the substrate in a configuration corresponding to the terminal on the IC device, the stud bumps comprising a shape adapted to temporarily couple with the terminals on the IC device;
a plurality of conductive traces located on the substrate electrically coupled with the test station and proximal ends of one or more of the stud bumps; and
a compliant layer supporting the proximal ends of the stud bumps, the compliant layer adapted to elastically bias the stud bumps toward the terminals on the circuit member and to compensate for non-planarity of the terminal.
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Abstract
A probe assembly that acts as a temporary interconnect between terminals on an IC device and a test station. The probe assembly includes a plurality of stud bumps arranged on a first surface of a substrate in a configuration corresponding to the terminal on the IC device. The stud bumps include a shape adapted to temporarily couple with the terminals on the IC device. A plurality of conductive traces on the substrate electrically couple the stud bumps with the test station.
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Citations
19 Claims
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1. A probe assembly to act as a temporary interconnect between terminals on an IC device and a test station, the probe assembly comprising:
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a substrate comprising a dielectric material; a plurality of conductive stud bumps arranged on a first surface of the substrate in a configuration corresponding to the terminal on the IC device, the stud bumps comprising a shape adapted to temporarily couple with the terminals on the IC device; a plurality of conductive traces located on the substrate electrically coupled with the test station and proximal ends of one or more of the stud bumps; and a compliant layer supporting the proximal ends of the stud bumps, the compliant layer adapted to elastically bias the stud bumps toward the terminals on the circuit member and to compensate for non-planarity of the terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A testing system comprising:
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a probe assembly comprising; a substrate comprising a dielectric material; a plurality of conductive stud bumps arranged on a first surface of the substrate in a configuration corresponding to the terminal on the IC device, the stud bumps comprising a shape adapted to temporarily couple with the terminals on the IC device; a plurality of conductive traces located on the substrate electrically coupled with proximal ends of one or more of the stud bumps; and a compliant layer supporting the proximal ends of the stud bumps, the compliant layer adapted to bias the stud bumps toward the terminals on the circuit member and to compensate for non-planarity of the terminal; an IC device comprising terminals compressively engaged with distal ends of the stud bumps, the compliant layer biasing the stud bumps toward terminals on the IC device and to compensate for non-planarity of the terminals; and a test station electrically coupled to the conductive traces of the probe assembly configured to test the IC device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification