DETERMINING THE QUALITY AND RELIABILITY OF A COMPONENT BY MONITORING DYNAMIC VARIABLES
First Claim
1. A method for testing the quality and/or the reliability of a component, comprising:
- applying test conditions to a plurality of specimens of the component;
while applying the test conditions, measuring the same variable from each of the plurality of specimens;
computing a running average of the measured variable across the plurality of specimens;
computing residuals between the measured variable for each specimen and the running average;
determining from the residuals whether the associated specimens are degraded;
recording the time at which the specimen of the component was determined to have degraded; and
determining how many test events have been repeated on the specimen of the component when the specimen of the component was determined to have degraded.
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Accused Products
Abstract
One embodiment of the present invention provides a system that tests the quality and/or the reliability of a component. During operation, the system applies test conditions to a plurality of specimens of the component. While applying the test conditions, the system measures the same variable from each of the plurality of specimens. Next, the system computes a running average of the measured variable across the plurality of specimens. The system then computes residuals between the measured variable for each specimen and the running average. The system next determines from the residuals whether the associated specimens are degraded.
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Citations
18 Claims
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1. A method for testing the quality and/or the reliability of a component, comprising:
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applying test conditions to a plurality of specimens of the component;
while applying the test conditions, measuring the same variable from each of the plurality of specimens;
computing a running average of the measured variable across the plurality of specimens;
computing residuals between the measured variable for each specimen and the running average;
determining from the residuals whether the associated specimens are degraded;
recording the time at which the specimen of the component was determined to have degraded; and
determining how many test events have been repeated on the specimen of the component when the specimen of the component was determined to have degraded. - View Dependent Claims (2, 4, 5, 6)
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3. (canceled)
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7. A computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method for testing the quality and/or the reliability of a component, the method comprising:
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applying test conditions to a plurality of specimens of the component;
while applying the test conditions, measuring the same variable from each of the plurality of specimens;
computing a running average of the measured variable across the plurality of specimens;
computing residuals between the measured variable for each specimen and the running average; and
determining from the residuals whether the associated specimens are degraded;
recording the time at which the specimen of the component was determined to have degraded; and
determining how many test events have been repeated on the specimen of the component when the specimen of the component was determined to have degraded. - View Dependent Claims (8, 10, 11, 12)
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9. (canceled)
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13. An apparatus that tests the quality and/or the reliability of a component, comprising:
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an applying mechanism configured to apply test conditions to a plurality of specimens of the component;
a measurement mechanism configured to measure the same variable from each of the plurality of specimens while the test conditions are applied;
an average-computing mechanism configured to compute a running average of the measured variable across the plurality of specimens;
an residuals-computing mechanism configured to compute residuals between the measured variable for each specimen and the running average;
a determination mechanism configured to determine from the residuals whether the associated specimens are degraded;
a recording mechanism configured to record the time at which the specimen of the component was determined to have degraded; and
a determination mechanism configured to determine how many test events have been repeated on the specimen of the component when the specimen of the component was determined to have degraded. - View Dependent Claims (14, 16, 17, 18)
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15. (canceled)
Specification