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  2. Soldering - Wikipedia

    en.wikipedia.org/wiki/Soldering

    Hot-bar reflow is a selective soldering process where two pre-fluxed, solder coated parts are heated with a heating element (called a thermode) to a temperature sufficient to melt the solder. Pressure is applied through the entire process (usually 15 seconds) to ensure that components stay in place during cooling.

  3. Solder alloys - Wikipedia

    en.wikipedia.org/wiki/Solder_alloys

    Soldering copper pipes using a propane torch and a lead-free solder. Solder is a metallic material that is used to connect metal workpieces. The choice of specific solder alloys depends on their melting point, chemical reactivity, mechanical properties, toxicity, and other properties.

  4. Reflow soldering - Wikipedia

    en.wikipedia.org/wiki/Reflow_soldering

    Reflow soldering is a process in which a solder paste (a sticky mixture of powdered solder and flux) is used to temporarily attach anywhere from one to thousands of tiny electrical components to their contact pads, after which the entire assembly is subjected to controlled heat. The solder paste reflows in a molten state, creating permanent ...

  5. Solder - Wikipedia

    en.wikipedia.org/wiki/Solder

    Solder (UK: / ˈ s ɒ l d ə, ˈ s ə ʊ l d ə /; [1] NA: / ˈ s ɒ d ər /) [2] is a fusible metal alloy used to create a permanent bond between metal workpieces. Solder is melted in order to wet the parts of the joint, where it adheres to and connects the pieces after cooling.

  6. Wave soldering - Wikipedia

    en.wikipedia.org/wiki/Wave_soldering

    Inside a wave soldering machine, showing the wave soldering process Temperature and time graph showing wave soldering solder pot and topside temperatures. 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 ...

  7. Thermal profiling - Wikipedia

    en.wikipedia.org/wiki/Thermal_profiling

    In soldering, a thermal profile is a complex set of time-temperature values for a variety of process dimensions such as slope, soak, TAL, and peak. [8] Solder paste contains a mix of metal, flux, and solvents that aid in the phase change of the paste from semi-solid, to liquid to vapor; and the metal from solid to liquid.

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  9. Process window index - Wikipedia

    en.wikipedia.org/wiki/Process_Window_Index

    An example of a process to which the PWI concept may be applied is soldering. In soldering, a thermal profile is the set of time-temperature values for a variety of processes such as slope, thermal soak, reflow, and peak. [5] Each thermal profile is ranked on how it fits in a process window (the specification or tolerance limit). [6]

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