Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Edmund Loh

#11557

BGA Rework | 6 May, 1999

Can anyone pls enlighten me on the rework of BGA. I reworking on a optic BGA with a glass plate on it. Is there any special requirement to take care for the rework. Thank You

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Paul Wieland

#11558

Re: BGA Rework | 10 May, 1999

| Can anyone pls enlighten me on the rework of BGA. | I reworking on a optic BGA with a glass plate on it. | Is there any special requirement to take care for the | rework. | | Thank You **************** I don't fully understand you problem but have been doing BGA Rework for over 3 years. There are several things to consider:

Max. die temp. and ramp rate of component/assembly Assembly and new component must be moisture free Profile should match flux/solder paste specs. Whole board should be heated up evenly to prevent warp Practice/profile on scrap bd. with T/C's mounted in balls... Inspect with X-ray/Laser....

These are general guidelines. Feel free to call: Paul Wieland (414)255-4634 ext.172

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