Invention Grant
- Patent Title: Detecting early failures in printed wiring boards
- Patent Title (中): 检测印刷电路板中的早期故障
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Application No.: US13886927Application Date: 2013-05-03
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Publication No.: US09551744B2Publication Date: 2017-01-24
- Inventor: Waleed M. Said , Harold J. Hansen , Hamdi Kozlu , Charles V. DeSantis
- Applicant: HAMILTON SUNDSTRAND CORPORATION
- Applicant Address: US NC Charlotte
- Assignee: HAMILTON SUNDSTRAND CORPORATION
- Current Assignee: HAMILTON SUNDSTRAND CORPORATION
- Current Assignee Address: US NC Charlotte
- Agency: Cantor Colburn LLP
- Main IPC: G01R31/305
- IPC: G01R31/305 ; G01R31/28
Abstract:
A method includes characterizing the effects of an electric field on a first set of printed wiring boards (PWBs) by testing the first set of PWBs to generate test data, using the test data to determine a dielectric life curve of the first set of PWBs, and based on the dielectric life curve, defining a screening time and a screening voltage to screen for premature failures in a second set of PWBs due to electric fields.
Public/Granted literature
- US20140218065A1 DETECTING EARLY FAILURES IN PRINTED WIRING BOARDS Public/Granted day:2014-08-07
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