How to clean Stencils, misprints and squeegees?

Trends that raise demands on cleanliness in the pick-and-place process

  • The general miniaturisation of PCB
  • The reduction of operating voltage
  • Narrower and smaller component spacing
  • Shorter distances between conducting paths
  • The rise in the use of electronics in all areas of industry

Why to clean stencils, squeegees and misprints of PCB?

51 – 72 % of the errors caused by soldering happen as the result of poor solder paste printing.

What are the most common problems?

1

Not enough paste is applied

2

Solder joint connection

3

Creation of "Solder ball"

What causes these problems?

The residue of old solder paste remaining on the template.

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Created by Ondřej Vašíček