LEADFREE Archives

January 2007

Leadfree@IPC.ORG
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Subject:
Re: IPA cleaning
From:
Rex Waygood <[log in to unmask]>
Reply To:
(Leadfree Electronics Assembly Forum)
Date:
Wed, 10 Jan 2007 11:53:29 -0000
Content-Type:
text/plain
Parts/Attachments:
text/plain (48 lines) 
Stop cleaning.
Rex 

-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of S.Badrinarayanan
Sent: 10 January 2007 11:38
To: [log in to unmask]
Subject: [LF] IPA cleaning

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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