Peelable mask


 
The peelable mask will hide a defined portion of the PCB and can be removed easily.
It must be able to withstand 2 or 3 welding processes without detaching it from the PCB.


The peelable mask is shown in blue.(Fig SPS).

. Minimum overlap both sides of an element to hide (pad, via, etc. ..): 0.6 mm(E - Fig.SPS)

. Minimum space between the edge of the peelable mask and anything not covered: 0.6 mm(C - Fig.SPS).

. Minimum width : 2 mm.

. Holes Ø < 3 mm(A2 - Fig.SPS)completely hidden..
. Holes Ø > 3 mm(A1 - Fig.SPS)partially hidden..
. Overhang soldermask inside the hole: 0.6 mm (0.3 + 0.3 = 0.6).(B - Fig.SPS).


. Peelable mask thickness > 0.25 mm .(F - Fig.SPS).

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