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2. Solder mask - Wikipedia

   en.wikipedia.org/wiki/Solder_mask

   Solder mask, solder stop mask or solder resist is a thin lacquer-like layer of polymer that is usually applied to the copper traces of a printed circuit board (PCB) for protection against oxidation and to prevent solder bridges from forming between closely spaced solder pads.

3. Printed circuit board manufacturing - Wikipedia

   en.wikipedia.org/wiki/Printed_circuit_board...

   A PCB with red solder mask and white silkscreen A PCB with green solder mask and yellow silkscreen. Areas that should not be soldered may be covered with solder resist (solder mask). The solder mask is what gives PCBs their characteristic green color, although it is also available in several other colors, such as red, blue, purple, yellow ...

4. Electroless nickel immersion gold - Wikipedia

   en.wikipedia.org/wiki/Electroless_nickel...

   Electroless nickel immersion gold (ENIG or ENi/IAu), also known as immersion gold (Au), chemical Ni/Au or soft gold, is a metal plating process used in the manufacture of printed circuit boards (PCBs), to avoid oxidation and improve the solderability of copper contacts and plated through-holes.

5. Printed circuit board - Wikipedia

   en.wikipedia.org/wiki/Printed_circuit_board

   The surface of a PCB may have a coating that protects the copper from corrosion and reduces the chances of solder shorts between traces or undesired electrical contact with stray bare wires. For its function in helping to prevent solder shorts, the coating is called solder resist or solder mask.

6. Stencil printing - Wikipedia

   en.wikipedia.org/wiki/Stencil_Printing

   The mask must be centered correctly. The mask protects the PWB against oxidation, and prevents unintended solder bridges from forming between closely spaced solder pads. Also the height of the solder mask should be lower than the pad height to avoid gasketing problems. If the height of the solder mask is greater than that of the pad, then some ...

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

8. Murdered Teen's Parents 'Stunned into Silence' After Son's ...

   www.aol.com/murdered-teens-parents-stunned...

   Drill rap artist TEN, who conceals his identity by wearing a ski mask, was identified as Fahri, now 35, by U.K. paper The Sun. Per the BBC, Fahri was released on license in June 2023. Per the BBC ...

9. Surface-mount technology - Wikipedia

   en.wikipedia.org/wiki/Surface-mount_technology

   Alternatively, SMT and through-hole components can be soldered on the same side of a board without adhesive if the SMT parts are first reflow-soldered, then a selective solder mask is used to prevent the solder holding those parts in place from reflowing and the parts floating away during wave soldering. Surface mounting lends itself well to a ...