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Real-Time Detection of Solder-Joint Faults in Operational Field Programmable Gate Arrays

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5 Author(s)
Hofmeister, J.P. ; Ridgetop Group, Inc., Tucson ; Lall, P. ; Ortiz, E. ; Goodman, D.
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In this paper we present two sensors for real-time detection of solder-joint faults in programmed, operational field programmable gate arrays (FPGAs), especially those FPGAs in ball grid array (BGA) packages. The first sensor uses a method in-situ within the FPGA and the second sensor uses a method external to the FPGA. Initial testing indicates the first method is capable of detecting high-resistance faults of 100 Omega or lower and which last one-half a clock period or longer. A prototype of the second method detected high-resistance faults of at least 150 Omega that lasted as low as 25 ns.

Published in:

Aerospace Conference, 2007 IEEE

Date of Conference:

3-10 March 2007