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January 2007

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Subject:
IPA cleaning
From:
"S.Badrinarayanan" <[log in to unmask]>
Reply To:
(Leadfree Electronics Assembly Forum)
Date:
Wed, 10 Jan 2007 05:37:43 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (18 lines) 
Dear All,

After wave soldering we clean our lead free boards with Iso Propyle Alcohol 
(IPA)even though we use a no clean flux. The boards are immersed in IPA tank 
and cleaned.Recently we are wittnessing white patches on the board after this 
cleaning process. How can I eliminate the white patches. Is there any 
alternate cleaning method available. Advance Thanks for the help.

Badri

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