Methods for slow test time detection of an integrated circuit during parallel testing
First Claim
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1. A method of testing semiconductor devices comprising:
- while a test program is being applied to a semiconductor device in parallel with at least one other semiconductor device, recognizing said semiconductor device as a candidate for test aborting because said device is testing too slowly compared to at least one other device being tested in parallel;
deciding whether to abort testing on said candidate; and
preventing said candidate from completing said test program, if said decision is to abort;
wherein after said device has completed said test program or has been prevented from completing said test program and if there is at least one remaining untested semiconductor device, said test program is applied to at least one of said remaining untested semiconductor devices.
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Abstract
Methods and systems for semiconductor testing are disclosed. In one embodiment, devices which are testing too slowly are prevented from completing testing, thereby allowing untested devices to begin testing sooner.
37 Citations
14 Claims
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1. A method of testing semiconductor devices comprising:
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while a test program is being applied to a semiconductor device in parallel with at least one other semiconductor device, recognizing said semiconductor device as a candidate for test aborting because said device is testing too slowly compared to at least one other device being tested in parallel; deciding whether to abort testing on said candidate; and preventing said candidate from completing said test program, if said decision is to abort; wherein after said device has completed said test program or has been prevented from completing said test program and if there is at least one remaining untested semiconductor device, said test program is applied to at least one of said remaining untested semiconductor devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A computer program product comprising a computer useable medium having computer readable program code embodied therein for testing semoconductor devices, the computer program product comprising:
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computer readable program code for causing the computer, while a test program is being applied to a semiconductor device in parallel with at least one other semiconductor device, to recognize said semiconductor device as a candidate for test aborting because said device is testing too slowly compared to at least one other device being tested in parallel; computer readable program code for causing the computer to decide whether to abort testing on said candidate; and computer readable program code for causing the computer to prevent said candidate from completing said test program, if said decision is to abort; wherein after said device has completed said test program or has been prevented from completing said test program and if there is at least one remaining untested semiconductor device, said test program is applied to at least one of said remaining untested semiconductor devices.
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Specification