Stevenage Circuits - Taking Technology Further

Printed Circuit Board Printed Circuit Board Printed Circuit Board

Capability and Design Guidelines

Solder Resist and Legend

Solder Resist Rigid circuits - Sun Chemicals (Coates) XV501T4 ImagecureSMART (Argus air spray system) Colour - matt green
Other finishes and colours available including red, black and blue.
Flexible circuits - Nippon Polytech NPR-80/ID100T (screen printed)
Colour - brown
Nominal Thickness 25µm (min 12.5µm)
We can plug through via holes using solder resist with a drill size of 0.3mm
Legend Photoimageable or silkscreen
Minimum line width of 150µm (6 mil)
Standard colour - White or Yellow
Peel Mask Nominal Thickness 250µm (10 mil), min 200µm (8 mil)

Solder resist features:

(A) Minimum resist dam: 75µm (3 mil)
(B) Minimum resist clearance (to ensure no encroachment): 50µm (2 mil)
Solder resist registration: +/- 50µm (2 mil)
Solder Resist Features