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2% Standard Deviation from Mid-Value after 40 Deviations - Leg is Faulted Main Processors Vote to Energize Fault LED TMR Enhanced Enhanced Digital Digital Output Module Fault Tolerant Hardware Voter for Each Output Point Series / Parallel Quad Out
Electronics Forum | Sat Oct 09 08:35:34 EDT 1999 | Dave F
Always experiencing dross in pot with different characteristic such as color, shape, dry/wet etc. Any paper, wetsites provide the more comprehesive explanation on its characteristic "Dross Myth Vesus Fact," R. Woodgate, SMT, 10/98
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Technical Library | 2017-10-12 15:45:25.0
The risk associated with whisker growth from pure tin solderable terminations is fully mitigated when all of the pure tin is dissolved into tin-lead solder during SMT reflow. In order to take full advantage of this phenomenon, it is necessary to understand the conditions under which such coverage can be assured. A round robin study has been performed by IPC Task group 8-81f, during which identical sets of test vehicles were assembled at multiple locations, in accordance with IPC J-STD-001, Class 3. All of the test vehicles were analyzed to determine the extent of complete tin dissolution on a variety of component types. Results of this study are presented together with relevant conclusions and recommendations to guide high reliability end-users on the applicability and limitations of this mitigation strategy.