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DIMM assembly
Kingston doesn't actually manufacture memory chips; it merely assembles memory modules. Assembly begins with bare chips from the manufacturer...

...and some bare printed circuit boards (PCBs).

The boards you see in the photo above will be cut into 12 SO-DIMMs. Before that can happen, however, the boards must go through a solder-paste printer.

That contraption applies a layer of solder paste on top of which components can be mounted.

Once the solder paste is on, the still-uncut boards go through SMT (surface-mounting technology) machines that place the memory chips and other components, like resistors and capacitors. Those resistors and capacitors are fed into the machines by old-school-looking reels, which you can see above. We're told these SMT devices operate around the clock.

With their components mounted, the boards go through an oven that melts the solder pads.

Then it's off to the labeling machine, which applies familiar stickers on top of the modules. The circuit boards are still uncut at this stage.