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solder paste volume

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solder paste volume | 14 April, 2010

After checking some of our stencil data for the correct aspect ratio I found that a few are wrong. I would like to change them from 5mil thk to 4mil thk but do not know how much paste volume I need to keep. We are using 0201,0402, and BGA with 0.80 pitch. Any help?

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solder paste volume | 15 April, 2010

Why not use the same paste volume as you currently use?

Alternately, although we haven't used it in a while, doesn't IPC have a very nice paste volume, aperture calculator that could be used for this? Or is it just a pad size calculator used for board design? Can't remember.

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