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2. Power electronic substrate - Wikipedia

   en.wikipedia.org/wiki/Power_electronic_substrate

   The substrate is attached to a heat spreader by soldering the bottom copper layer to it. A related technique uses a seed layer, photoimaging, and then additional copper plating to allow for fine lines (as small as 50 micrometres) and through-vias to connect front and back sides. This can be combined with polymer-based circuits to create high ...

3. Printed circuit board - Wikipedia

   en.wikipedia.org/wiki/Printed_circuit_board

   High volume production is usually done with a pick-and-place machine and bulk wave soldering for through-hole parts or reflow ovens for SMT components or through-hole parts, but skilled technicians are able to hand-solder very tiny parts (for instance 0201 packages which are 0.02 in. by 0.01 in.) [61] under a microscope, using tweezers and a ...

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5. Ball grid array - Wikipedia

   en.wikipedia.org/wiki/Ball_grid_array

   BGA ICs assembled on a Memory module. The BGA is descended from the pin grid array (PGA), which is a package with one face covered (or partly covered) with pins in a grid pattern which, in operation, conduct electrical signals between the integrated circuit and the printed circuit board (PCB) on which it is placed.

6. Surface-mount technology - Wikipedia

   en.wikipedia.org/wiki/Surface-mount_technology

   Solder joint dimensions in SMT quickly become much smaller as advances are made toward ultra-fine pitch technology. The reliability of solder joints becomes more of a concern as less and less solder is allowed for each joint. Voiding is a fault commonly associated with solder joints, especially when reflowing a solder paste in the SMT application.

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   It was a dynasty that ended sharply in 2020 when Brady elected to take his talents to Tampa Bay, though Belichick didn't part way with the Patriots until Jan. 2024.

8. Dip soldering - Wikipedia

   en.wikipedia.org/wiki/Dip_soldering

   Dip soldering apparatus. Dip soldering is a small-scale soldering process by which electronic components are soldered to a printed circuit board (PCB) to form an electronic assembly. The solder wets to the exposed metallic areas of the board (those not protected with solder mask), creating a reliable mechanical and electrical connection.

9. Should You Stock Up On The Abortion Pill Now? Here's What ...

   www.aol.com/stock-abortion-pill-now-heres...

   The best way to tell the shelf life of the abortion pill is to look at the expiration date stamped on the package. Keep in mind that some medications may be good beyond the expiration date, but it ...