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Soldering BGAs -- solder paste or not?

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jpanhalt:
@ebastler

I also use Eagle 7 (stayed with 7.2 -- didn't like some of the gadgets in later versions).  Recently, I was designing a FFC 0.5 mm pitch connector footprint and wanted to keep the solder mask back from a larger area than I wanted for the cream.  That worked fine.  The stencil and PCB's confirm it.  It was done in the library.  Here is a link to a current procedure from Autodesk: https://forums.autodesk.com/t5/eagle-forum/how-to-prevent-aperture-in-stencil-screen/td-p/8431381

I don't remember whether that is what I did, as in my case the mounting pads were not connected to signal.  If it is of interest to try what I did, I will dig it out and post some pictures.

Alternatively, if you have the part number for something with BGA in the 7.x library, I will pull it up and give it a play.

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