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

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Patrick O' Herlihy

#12985

BGA - Damage to solder mask | 13 January, 1999

Can anyone recommend ways of reducing damage to solder masks ... a new wick perhaps. I find that using standard wicks the imposed damage is un-acceptable.

Also any good links on the subject of bga rework would be really appreciated

in earnest ...

Pat

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Dave F

#12986

Re: BGA - Damage to solder mask | 18 January, 1999

| Can anyone recommend ways of reducing damage to solder masks ... a new wick perhaps. I find that using standard wicks the imposed damage is un-acceptable. | | Also any good links on the subject of bga rework would be really appreciated | | in earnest ... | | Pat

Pat: Stop using wick. Operators try to rush and drag the iron and wick between pads and

1 Mess-up the mask webbing between pads 2 Fill vias with solder, reducing LT reliability

Just dress the pads with your iron and get on with replacing the BGA. TTYL Dave F |

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