Electronics Forum | Wed May 30 10:09:39 EDT 2012 | brettrenishaw
Recently we have noticed a purple-blue colour film on the surface of the molten solder. It can be cleared when de-drossing the pot. The pot will normally go a yellow/gold colour before it turns purple-blue. Is this most likely an oxide of the tin or
Electronics Forum | Tue Aug 24 15:15:43 EDT 1999 | John Thorup
| Could use a little help here. Can anyone clarify to me the cause and fix of chip caps/resistors tombstoning following reflow? | | Any help would be appreciated. Thanks. | Most common reason is uneven heating where one side of the component ach
Technical Library | 2020-07-29 20:12:52.0
Aluminum is a metal that it is hard to solder due to the high surface tension difference between it and molten solder alloy. This occurs because aluminum rapidly forms a tenacious oxide layer whenever it is exposed to oxygen in the air. The oxide layer is responsible for the high surface tension difference between the aluminum and the solder and impedes the solder from spreading evenly on an aluminum surface. There are hundreds of aluminum alloys available in the marketplace; it is important to identify the form of aluminum that is being soldered. Once this is done, an appropriate soldering technique can be chosen for soldering the specific aluminum alloy under consideration. Direct aluminum soldering eliminates using expensive plating techniques to prepare the aluminum surface for soldering.
Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board
Blackfox Training Institute, LLC | https://www.blackfox.com/7-benefits-of-surface-mount-technology-smt/
. This is due to the solder surface tension that forces components to align with the solder pads, reducing placement errors. Quality Control Because of
Imagineering, Inc. | https://www.pcbnet.com/blog/benefits-surface-mount-technology-smt-pcb-assembly/
. Here are additional benefits of SMT: Component placement autocorrect – The solder surface tension forces components into alignment with solder pads
The SMTA membership is a network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies and related business operations.
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