Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

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SMT electronics assembly manufacturing forum.


Stencil Thicknes vs. actual solder height measurements

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#52861

Stencil Thicknes vs. actual solder height measurements | 11 December, 2007

Hi,

If I were working with a 75 um thick stencil, Is there a spec. as to what the maximum value allowed on actual solder height measurements? Stencil type: Laser cut and electropolished Solder paste type: Type 4 Sn-Sb

Would the measured values vary with type of components or would be a universal spec. irrespective of the component types?

Would the measured values and spec. be different between SMD and NSMD board designs?

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#52870

Stencil Thicknes vs. actual solder height measurements | 12 December, 2007

There is no specification for solder paste height, just as there is no specification for paste volume. Focus on producing a fillet that meets J-STD-001. You make the choices that produce the end result.

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