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Reliability Study for Test Lands Targeting during Electrical Testing

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2 Author(s)
Lei Han ; Central South University, Changsha, 410083, China. Email:, phone: 0731-8836499 ; Arkady Voloshin

Theoretical analysis and experimental observation of tolerance distribution in bed-of-nails fixture were made for its reliability in testing. A systematic, accurate and robust evaluating method for printed circuit board (PCB) positioning assessment in testing fixture was developed. Actual deformation of PCB could be obtained based upon a reasonable mode. The combined accuracy of the test lands position targeting (false failure rate or overlapping rate of probe/test lands) were estimated by Weibull model. Results will be helpful for reliability analysis of the PCB test fixtures

Published in:

2005 Conference on High Density Microsystem Design and Packaging and Component Failure Analysis

Date of Conference:

27-29 June 2005