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Solder paste Density

Views: 5822

#55971

Solder paste Density | 13 August, 2008

Hello... I need to calculate the solder paste quantity that I'll need for a new product and I need the density of the solder paste Cookson OM338PT. Can anybody help me? Thanks!

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#55972

Solder paste Density | 13 August, 2008

easiest way is to weigh an empty board and then weigh a printed board, best to do 10 or so and take an average.

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#55973

Solder paste Density | 13 August, 2008

If I had the stencil and the PCB I would have done this before. But I don't have both!

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#55976

Solder paste Density | 13 August, 2008

Solder Alloy Density Calculator: http://www.indium.com/densityCalc

From NIST Boulder database, density [g/cc] of: * Tin-lead eutectic solder => 8.4 * SAC305 => 7.36 * Sn-3.5Ag => 7.5 * '....in' [96.2Sn-2.5Ag-0.8Cu-0.5Sb] => 7.39 * Sn-4Ag-0.5Cu => 7.39, 7.44 * Sn-3.8Ag-0.7Cu (Multicore solder) => 7.5

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#55982

Solder paste Density | 14 August, 2008

Thanks Davef!

I got have an ideia about the solder paste consumption using this calculator

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