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Understanding Solder Dross: Causes and Control Strategies
This article outlines the main contributors to dross formation, examines how alloy refining methods play a role, and explores practical ways to reduce dross through process control and equipment optimization.
AIM Solder
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| Ask the Experts |
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November 16, 2011 - Updated
November 14, 2011 - Originally Posted
Mixing Solders
Is there a problem if the following 2 solderchemistries are mixed on a PCBA?
Sn96.5 Ag3.0 Cu0.5 and Sn95.5 Ag4.0 Cu0.5
M. D.
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| Expert Panel Responses |
Absolutelynot, for all practical and most physical and chemical reasons, they areidentical before,during and after the soldering process so mixing them wouldhave no effect.
Richard Boyle
Global Product Champion
Henkel Electronics
Richard Boyle is a Global Product Champion at Henkel Electronics. He has over 25 years experience in the electronics assembly industry and is responsible for the global technical service of all of Henkel's solder materials.
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Reinforce Critical Components on PCBs
Low modulus wire tacking & ruggedizing adhesives hold vital BGAs & VGAs in place, enhancing shock & vibration resistance of electronic assemblies.
Dymax
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