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  2. Solder paste - Wikipedia

    en.wikipedia.org/wiki/Solder_paste

    The amount of time solder paste can stay on a stencil without affecting its printing properties. The paste manufacturer provides this value. Tack Tack is the property of a solder paste to hold a component after the component had been placed by the placement machine. Hence, tack life is the critical property of solder pastes.

  3. Tin-silver-copper - Wikipedia

    en.wikipedia.org/wiki/Tin-silver-copper

    Tin-silver-copper (Sn-Ag-Cu, also known as SAC), is a lead-free alloy commonly used for electronic solder. It is the main choice for lead-free surface-mount technology (SMT) assembly in the industry, [ 1 ] as it is near eutectic , with adequate thermal fatigue properties, strength, and wettability. [ 2 ]

  4. 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.

  5. Soldering - Wikipedia

    en.wikipedia.org/wiki/Soldering

    Reflow soldering is a process in which a solder paste (a mixture of prealloyed solder powder and a flux-vehicle that has a peanut butter-like consistency [8]) is used to stick the components to their attachment pads, after which the assembly is heated by an infrared lamp, a hot air pencil, or, more commonly, by passing it through a carefully ...

  6. 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.

  7. CuSil - Wikipedia

    en.wikipedia.org/wiki/CuSil

    CuSil is a tradename for an alloy of 72% silver and 28% copper (± 1%) marketed by Morgan Advanced Materials. It is a eutectic alloy primarily used for vacuum brazing . [ 1 ] CuSil should not be confused with the similarly named Cusil-ABA, which has a different composition (Ag – 63.0%, Cu – 35.25%, Ti – 1.75%)

  8. 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 ...

  9. Niello - Wikipedia

    en.wikipedia.org/wiki/Niello

    Niello / n iː ˈ ɛ l oʊ / [1] [2] is a black mixture, usually of sulphur, copper, silver, and lead, [3] used as an inlay on engraved or etched metal, especially silver. It is added as a powder or paste, then fired until it melts or at least softens, and flows or is pushed into the engraved lines in the metal.

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