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

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Cleaning BGA pads prior to rework

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#61572

Cleaning BGA pads prior to rework | 8 April, 2010

Hi,

Looking for views and some opinions on the best systems to use to clean pads (particularly BGA) prior to carrying out replacement of parts. I'm thinking of vacuum type desoldering systems. Obviously braid is an option which we currently use, but it's not so good in some applications.

Thanks John

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#61578

Cleaning BGA pads prior to rework | 8 April, 2010

Fast or cheap, fast or cheap, fast or cheap ... Tough call, oh yeh, time is money. That's it!!!

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#61579

Cleaning BGA pads prior to rework | 9 April, 2010

Hi John,

Our ERSA rework station came with a soldering iron that has a few special tips. We normally do not have a stencil and use tacky flux, so I use the concave tip to prep the pads. This leaves solder on the pads but with a little practice you can get an even coverage which is the important part. This is very quick.

It also has a squeegee like tip. This removes more solder but I have a hard time getting that one to work for me.

Jerry

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PCB Cleaning