Blackfox Training Institute, LLC | https://www.blackfox.com/soldering/4-common-errors-in-smt-assembly/
. Non Wetting Or De Wetting Non-wetting is an SMT defect that occurs when the base metal surface on the board doesn’t accept the molten solder, creating a poor joint condition where a component’s terminals
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-glossary-of-terms
. De-soldering The removal of solder and components from a circuit, usually for purposes of repair. De-wetting A condition where molten solder has coated a surface and then receded, leaving irregularly shaped mounds of solder separated by areas covered with a thin solder film
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resources/solder-dictionary-of-terms
. De-soldering The removal of solder and components from a circuit, usually for purposes of repair. De-wetting A condition where molten solder has coated a surface and then receded, leaving irregularly shaped mounds of solder separated by areas covered with a thin solder film
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/de-DE/divisions/dage/about/blog/the-power-of-2d-and-3d-inspection
. The image to the top right side shows the quality of ball wetting to the device interface. It is clearly seen that there is an interfacial difference compared to neighboring joints
Precision PCB Services, Inc | https://precision-pcb-services-inc.com/products/amtech-nws-4400-ha-tf-water-washable-lead-free-tacky-solder-flux-rem1
designed to combat oxidation and address issues with wetting. NWS has proven to handle the most difficult wetting/preparation tasks and has become widely accepted formulation on Flip Chip Bumping and Chip Scale Packaging sites
Blackfox Training Institute, LLC | https://www.blackfox.com/blog/guide-to-a-successful-lead-free-soldering/
. Avoid prolonging the tip contact to excessive temperature as it can result in de-wetting or the dissolution of less solder-ready surface or plated metals
Blackfox Training Institute, LLC | https://www.blackfox.com/guide-to-a-successful-lead-free-soldering/
. Avoid prolonging the tip contact to excessive temperature as it can result in de-wetting or the dissolution of less solder-ready surface or plated metals
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/blog/102518-halogens-and-halides
. Other sources of halogens in circuit boards include fiberglass sizing, epoxy curing agents and accelerators, resin wetting and de-foaming agents, flux residues, and contamination from handling
Baja Bid | https://bajabid.com/wp-content/uploads/2021/09/Viscom-S3016-OEM.pdf
very different inspection object types Optional return transport of the manufactured products Insufficient wetting (front) and missing pin (back) Reliable 3D inspection of THT solder joints Dimensions in mm Front view Top viewSide view with optional return transport
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