New Equipment | Education/Training
If you are trying to instruct new electronic technicians, high schoolers, or DIYers in the skill of soldering and do not want to instruct them on home made PCBs that are not representative of the type parts or the types of surface finish you would ex
Electronics Forum | Sat Jul 30 05:49:42 EDT 2011 | leadthree
Do we need to clean after hand soldering with no-clean flux solder wire? I am just wondering. The flux is clearly visible. Will there be any long term negative effects on the modules? Is there any IPC requirement on cleaning it? BTW, I talk about
Electronics Forum | Mon Jul 01 20:44:17 EDT 2002 | davef
Actually, the white res were caused by the water carrier in your Lonco 23F reacting with the res from the nc flux used to solder the component in place. Comments are: * Some nc flux res are cleanable, some are not. Your supplier [Alpha?] can probab
Industry News | 2003-06-10 08:16:44.0
The following text describes the application of NWA Quality Analyst to quality control in the assembly of electronic components.
Industry News | 2018-10-18 08:29:16.0
How to Prevent Short Circuits to Ground in QFN Components?
Technical Library | 2020-11-24 23:12:27.0
In a lead-free reflow process, temperatures are higher, and materials use outgasses more than in a leaded reflow process. The trends toward higher density populated boards and more pin-in-paste technology also increase solder paste use. More components and more solder paste result in more outgassing of chemistry during the reflow process. Some assemblies report condensation of vapors when the cold printed circuit board enters the oven. Little is known about the interaction between these condensed materials in terms of the interaction between these condensed materials and the reliability of the assembly. Apart from the question of reliability, a printed circuit board contaminated with a small film of residues after reflow soldering is not desirable.
Technical Library | 2017-12-11 22:31:06.0
Typical printed circuit board assemblies (PCBAs) processed by reflow, wave, or selective wave soldering were analysed for typical levels of process related residues, resulting from a specific or combination of soldering process. Typical solder flux residue distribution pattern, composition, and concentration are profiled and reported. Presence of localized flux residues were visualized using a commercial Residue RAT gel test and chemical structure was identified by FT-IR, while the concentration was measured using ion chromatography, and the electrical properties of the extracts were determined by measuring the leak current using a twin platinum electrode setup. Localized extraction of residue was carried out using a commercial C3 extraction system. Results clearly show that the amount and distribution of flux residues are a function of the soldering process, and the level can be reduced by an appropriate cleaning. Selective soldering process generates significantly higher levels of residues compared to the wave and reflow process. For conformal coated PCBAs, the contamination levels generated from the tested wave and selective soldering process are found to be enough to generate blisters under exposure to high humidity levels.
How to Maintain a Reflow Oven Proper reflow overn maintenance can extend its life cycle, keep the machine in good condition, and improve production efficiency and product quality. One of the most important tasks for properly maintaining a reflow ove
Welcome to this Defect of the Month video on via hole failures and how to see them, this series of videos were produced for and featured as part of the NPL/IPC video library and examples are taken from the NPL Defect Database. Over the last couple of
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Blackfox Training Institute, LLC | https://www.blackfox.com/how-to-remove-oxidation-from-soldering-iron-tips/
: Home Blog How To Remove Oxidation From… Mar 8 2021 Blog News & Events Soldering Poor soldering tip maintenance is a common culprit in most soldering issues
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