I would be the first to admit I am not an expert, but cleaning under a low stand-off BGA is a major problem.   And water soluble flux residues are definitely not something you want left on a board.
 
Chris Christian
Indium Corporation of America
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Mary Jane Chism
Sent: Thursday, February 28, 2002 3:11 PM
To: [log in to unmask]
Subject: [TN] FW: Water soluble w/BGA



-----Original Message-----
From:   Mary Jane Chism
Sent:   Thursday, February 28, 2002 2:27 PM
To:     [log in to unmask]
Subject:        Water soluble w/BGA

I wanted to present this question out to the experts; What do you think about the validity of using water soluble flux with BGAs? Do you see a "residue" issue? Thanks.

Mary Jane Chism