THANKS TO ALL FOR HELPING ME IN THIS ISSUE<
GABY

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee parker
Sent: Tuesday, June 24, 2008 6:02 PM
To: [log in to unmask]
Subject: Re: [TN] edge delamination flexible circuits assemblies

Gaby

Cleaning can cause edge delamination. To determine if this is the root cause

in your case I would make up a few samples from a scrap board that has not 
been cleaned. I would then clean half the samples and then subject all of 
the samples to a T260 test. If cleaning is the issue, you should see a 
greater tendency for delamination with the cleaned samples.

Best regards

Lee

J. Lee Parker, Ph.D.
JLP Consultants LLC
804 779 3389


----- Original Message ----- 
From: "Gabriela" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, June 23, 2008 1:10 PM
Subject: [TN] edge delamination flexible circuits assemblies


> What may cause the edge delamination of rigid/flex assemblies along the
> edges of the flex connector?
> We saw this defect only after cleaning the circuits in ABZOL .
>
> Before assembly we are drying the circuits for several hours at 120C. Is 
> it
> possible that the cleaning process attacks the adhesive?
>
> Are there recommendations for cleaning flexs?
>
> Gaby
>
>
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