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Precision Etched
For component pitches down to 0.635mm (0.025")- Good paste release
- Cost effective process - all apertures created simultaneously
- Durable stainless steel material
Photo Chemical Machining (PCM) or 'photo etching', is a subtractive process that selectively removes metal by chemical action. It is a precise and cost-effective process for producing accurate surface mount stencils.
The majority of precision-etched stencils are manufactured in stainless steel, offering good durability and increased resistance to cleaning solutions.
Precision-etched stencils are appropriate for printing component pitches down to 0.635mm (0.025"), for finer pitch requirements
Laser Cut, Laserformed or Electroformed Stencils are recommended.
Apertures can be produced with trapezoidal definition, where the squeegee side opening is marginally smaller than the required size on the release side. The wall shape, being similar to an upturned bucket, promotes improved paste release.
| Suitable application: | All component pitches down to 0.635mm (0.025") |
| Positional accuracy: | ± 25µ (0.001") |
| Aperture dimensional tolerances: 0.200mm (0.008") - 0.400mm (0.016") 0.425mm (0.017") - 0.635mm (0.025") 0.650mm (0.026") and above |
± 0.018mm (0.00075") ± 0.023mm (0.00090") ± 0.028mm (0.00120") |
| Standard material thicknesses available: | 0.100, 0.125, 0.150, 0.200, 0.250mm 0.004", 0.005", 0.006", 0.008", 0.010" Other thicknesses are available on request. |
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