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2. Solder paste - Wikipedia

   en.wikipedia.org/wiki/Solder_paste

   Although solder paste typically contains around 90% metal in solids by weight, the volume of the soldered joint is only about half that of the solder paste applied. [7] This is due to the presence of flux and other non-metallic agents in the paste, and the lower density of the metal particles when suspended in the paste as compared to the final ...

3. Rework (electronics) - Wikipedia

   en.wikipedia.org/wiki/Rework_(electronics)

   Dispensed solder paste on the pads of a QFPs Mask and spheres for reballing. Heating a single SMD with a hot-air gun to melt all solder joints between it and the PCB is usually the first step, followed by removing the SMD while the solder is molten. The pad array on the conductor board should then be cleaned of old solder.

4. Soldering - Wikipedia

   en.wikipedia.org/wiki/Soldering

   No-clean fluxes – mild enough to not "require" removal due to their non-conductive and non-corrosive residues. [8] These fluxes are called "no-clean" because the residue left after the solder operation is non-conductive and will not cause electrical shorts; nevertheless they leave a plainly visible white residue.

5. This bestselling Pink Stuff cleaning paste and scrubber is a ...

   www.aol.com/lifestyle/this-bestselling-pink...

   "This tool was the key to getting the tile incredibly clean without much effort on my part. Highly recommend for cleaning." "I love this thing!" exclaimed another impressed user. "It is great [for ...

6. Wave soldering - Wikipedia

   en.wikipedia.org/wiki/Wave_soldering

   Wave soldering is a bulk soldering process used for the manufacturing of printed circuit boards. The circuit board is passed over a pan of molten solder in which a pump produces an upwelling of solder that looks like a standing wave. As the circuit board makes contact with this wave, the components become soldered to the board.

7. Surface-mount technology - Wikipedia

   en.wikipedia.org/wiki/Surface-mount_technology

   Proper cleaning removes all traces of solder flux, as well as dirt and other contaminants that may be invisible to the naked eye. No-Clean or other soldering processes may leave "white residues" that, according to IPC, are acceptable "provided that these residues have been qualified and documented as benign". [10]