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how to mount a BGA chip on a PCB board?

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davidwang

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Question about BGA mount

Who can give me some advice on how to mount a BGA chip on a PCB board ? What kind of special devices needed to mount it on ?

thanks
 

toonafishy

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If the pin count is low, I can do it with a heat gun. You must mark the PCB with an outline so that you can center the part. Touch a soldering iron to each PCB pad with a little solder and then remove it with solder wick so that each pad is tinned. Place the part on the board and then heat it with the heatgun. I use a wooden toothpick to gently push the part down to hold it in place when the solder reflows. It would be nice to have a paste stencil but sometimes you cannot afford one. This won't work if you have already removed the part and the balls are damaged.
 

kot_b

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So guy's I think, that mounting BGA without optics... :x
 

flowers

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Be care about the moisture.

It will destroy you bga while heating.
After done this, I got 100 % sucessful in both smt production or
the bga mounting machine.

flowers
 

davidwang

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Could someone recommend a low cost BGA mount service in USA?

I only have several BGA chips to be mounted.

Thanks
 

alledauser

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You may get problems even with machine mounted bga chips, especially with fine pitch ones. I have seen a lot! I think XRAY equipment is a must for post manufacturing inspection of bga chips.
 

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