How to Select the Right Stencil Cleaning Roll for SMT?
A line operator pulls a stencil off the printer, wipes it down with whatever roll is on hand, and moves on. Three shifts later, solder paste residue is bridging pads nobody flagged. That's how a Stencil Cleaning Roll problem usually starts — not with a bad batch, but with nobody treating the roll as a spec item in the first place. Most procurement teams buy these on autopilot, assuming...