Mounting/Wire a MAPBGA

Hello,

I have been given some MC68VZ328VF33V, Dargonballs. They have MAPBGA housing, so it's impossible to solder them the old fashion way. I was wondering: How can you mount them to a PCB? Is it possible to glue them to the PCB with a special product that doesn't isolate the electrical "flow"

Or is it only done with some professional help, eg. an PCB factory.

Thanks,

Edzard Kolks Eindhoven - Holland

Reply to
Edzard H.E.H.M. Kolks
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Edzard,

You really need to have them professionaly soldered on using a reflow oven. Tools for this cost quite a few thousand dollars, so you'd be better off to pay someone to do it.

If you wanted to do it yourself, you could get the reflow-solder paste, and try and do it in your home oven. You would have to be very very very lucky for this to work without any short circuits though.

goodluck.

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Damion de Soto - Software Engineer  email:     damion@snapgear.com
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Reply to
Damion de Soto

try and

AFAIK BGA does not need reflow-solder paste, as the "pins" are made of this stuff. (But I might be wrong.) Using paste will very likely produce short circuits.

circuits though.

.. or non soldered "pins".

I suppose it's close to impossible to do this on a home work bench. The professionals use very sophisticated temperature profiles and X-ray inspection tools to verify the soldering.

-Michael

Reply to
Michael Schnell

try and

You are correct here. I have seen data sheets that recommend not using paste, I think the chips + technologies graphics chips recommends this IIRC, because of possible shorts. I have used this method for prototypes

- but you do need to put some flux on the board. Most manufacturers recommend using paste, though.

For prototype boards, you can reflow the solderballs but you need to bring up the temperature of the board in a reasonably controlled way, which means you need specialist equipment. I have seen equipment designed for prototype use available for a about £4K - (Ersa I think). Best thing is to give it to someone to do it for you, as someone else has pointed out.

Regards,

Paul.

Reply to
Paul Taylor

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