Selective Soldering pallets are used when single sided PCB’s require to be masked from the wave. Including non plated through holes for fixings, any plated through holes that will need to used post wave or Any area of the PCB that solder would adhere to if exposed to the wave e.g. groundplanes. Selective wave solder fixtures should be considered whenever you are having to use kapton tape to mask features. Savings can be made in both materials and manpower.
We pay particular design attention to select the correct masking thickness as two effects dominate the behaviour of the masking; Thermal bowing due to the temperature difference across the web thickness and buckling caused by the bulk rise in temperature of the masking over the parent carrier.
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