Method of testing semiconductor
First Claim
1. Method of testing semiconductor devices, prior to their being singulated from a semiconductor wafer, comprising:
- permanently mounting a plurality of resilient contact structures directly to a plurality of first terminals on a plurality of semiconductor devices which are resident on a semiconductor wafer, each of said resilient contact structures having a tip and extending from a surface of the semiconductor device to which it is mounted;
urging a substrate having a plurality of second terminals towards the surfaces of the semiconductor devices resident on the semiconductor wafer to effect a plurality of electrical connections between respective ones of the second terminals and tips of the resilient contact structures; and
providing signals to the second terminals of the substrate to exercise, including powering up and/or burning-in, at least a portion of the plurality of semiconductor devices resident on the semiconductor wafer.
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Accused Products
Abstract
Resilient contact structures are mounted directly to bond pads on semiconductor dies, prior to the dies being singulated (separated) from a semiconductor wafer. This enables the semiconductor dies to be exercised (e.g., tested and/or burned-in) by connecting to the semiconductor dies with a circuit board or the like having a plurality of terminals disposed on a surface thereof. Subsequently, the semiconductor dies may be singulated from the semiconductor wafer, whereupon the same resilient contact structures can be used to effect interconnections between the semiconductor dies and other electronic components (such as wiring substrates, semiconductor packages, etc.). Using the all-metallic composite interconnection elements of the present invention as the resilient contact structures, burn-in can be performed at temperatures of at least 150° C., and can be completed in less than 60 minutes.
168 Citations
20 Claims
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1. Method of testing semiconductor devices, prior to their being singulated from a semiconductor wafer, comprising:
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permanently mounting a plurality of resilient contact structures directly to a plurality of first terminals on a plurality of semiconductor devices which are resident on a semiconductor wafer, each of said resilient contact structures having a tip and extending from a surface of the semiconductor device to which it is mounted; urging a substrate having a plurality of second terminals towards the surfaces of the semiconductor devices resident on the semiconductor wafer to effect a plurality of electrical connections between respective ones of the second terminals and tips of the resilient contact structures; and providing signals to the second terminals of the substrate to exercise, including powering up and/or burning-in, at least a portion of the plurality of semiconductor devices resident on the semiconductor wafer. - View Dependent Claims (2, 3, 4, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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5. Method of testing and mounting semiconductor devices, comprising:
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prior to a plurality of semiconductor devices being singulated from a semiconductor wafer; permanently mounting a plurality of resilient contact structures directly to a plurality of first terminals on a surface of at least one of the plurality of semiconductor devices, said resilient contact structures each having a tip and extending from the surface of the semiconductor device; urging a substrate having a plurality of second terminals towards the surface of the semiconductor device to effect a plurality of pressure connections between respective second terminals and tips of the resilient contact structures; and providing signals to the second terminals of the substrate to test the semiconductor semiconductor device; after testing the semiconductor semiconductor device; singulating the semiconductor device from the wafer; and mounting the semiconductor device to an electronic component, connections being made between the resilient contact structures of the semiconductor device and third terminals of the electronic component. - View Dependent Claims (6, 7, 8, 9)
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Specification