Solder-stop mask

We can only give a limited recommendation for coating vias (plated-through holes) with solder-stop. Please refer to our Design Aid Via Covering.

You should pay special attention to solder-stop bridges (solder-stop between two pads or vias), which should not be smaller than 100µm (green solder-stop) and 150µm (coloured solder-stop) respectively.

Solder-stop parameters (colour: green)

	clearance min	clearance recommended	bridge width min.	bridge width recommended
Via	50µm	-	100µm	125µm
Component hole	50µm	75µm	100µm	125µm
SMD pad	50µm	75µm	100µm	125µm

Solder-stop parameters (colour: red, blue, white, black)

	clearance min.	clearance recommended	bridge width min.	bridge width recommended
Via	75µm	-	150µm	150µm
Component hole	75µm	75µm	150µm	150µm
SMD Pad	75µm	75µm	150µm	150µm

Exemption of component holes

For component holes, please ensure a clearance (spacing between copper to solder-stop) of at least 50µm (green solder-stop).

This clearance should be larger if possible (75µm), to avoid manufacture with extreme tolerances.

For other colours, the minimum solder-stop clearance is 75µm.

The smallest possible solder-stop bridge width is 100µm (green) or 150µm (other colours), respectively.

Exemption of SMD pads (fine pitch)

The minimum solder-stop clearance for SMD pads should at least be 50µm, better: 75µm.

For other colours than green, the min. solder-stop clearance is 75µm.

The smallest possible solder-stop bridge width is 100µm (green) or 150µm (other colours), respectively.

BGA (Ball Grid Array)

The following possibilities exist for BGAs (for explanation see Via Covering):

Via Tenting
Via Filling
Via-in-Pad

You should consult your assembly partner when selecting an appropriate surface, normally our customers select immersion tin or immersion gold.

Additional information

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Pricing Examples

Printed Circuit Boards always include:

- E-Test
- Solder-stop 2x
- Marking print 1x
- Gerber-Import
- Scoring (series)
- Design-Rule-Check

- Tooling costs
- Photoplot
- Conductors 150μm
- Drill holes 0,3mm
- Unlimited drilling
- HAL, FR4 1,6, 35μm Cu

Prototypes

2 layers - 6 WD	41,- €
1 Printed circuit board 100x100mm
4 layers - 8 WD	118,- €
1 Printed circuit board 160x100mm
6 layers - 8 WD	148,- €
1 Printed circuit board 160x100mm

Series

e.g. 100 pcs. Eurocard 100x160mm

2 layers - each	4,92 €

4 layers - each	7,05 €

6 layers - each	10,67 €

8 layers - each	16,99 €

SMD Stencils

max. 200x300mm - 3WD	47,50 €
1 Stencil, including 1000 pads
max. 600x600mm - 3WD	90,44 €
1 Stencil, including 2500 pads

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Prices plus VAT and delivery costs.

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