Can you send Steve pictures of the delaminated areas? He can post them, and from that it is often easier to figure out the root cause of the delams. I have copied his email.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of SARAVANAN R
Sent: Tuesday, October 29, 2013 8:12 AM
To: [log in to unmask]
Subject: Re: [TN] PCB EDGE DELAMINATION

Dear all.

The pcbs are vacuum baked and sealed . Not baked prior to assembly. regards,

R.Saravanan






On Tuesday, 29 October 2013 11:40 AM, Oscar Fallah <[log in to unmask]> wrote:
 
Hi,

Were the PCBs baked prior to assembly/soldering process?

Regards,
Oscar

On Wed, Oct 23, 2013 at 12:04 PM, Joyce Koo <[log in to unmask]> wrote:

> If ground layer exposed, not good.
>
>   Original Message
> From: Reuven Rokah
> Sent: Wednesday, October 23, 2013 3:02 PM
> To: [log in to unmask]
> Reply To: TechNet E-Mail Forum
>  Subject: Re: [TN] PCB EDGE DELAMINATION
>
> What is the shape of the delamination
> Is it at the same place? in all the PCBAs How many layers? materials?
> Del location and photos
>
>
> On Wed, Oct 23, 2013 at 7:09 PM, Victor Hernandez <
> [log in to unmask]> wrote:
>
> > Is the PCB/PWB stamp out? Router?
> > What is the thickness of the board in question?
> > Is the delamination on a smooth area, rough and/or break away zone, drill
> > holes or V score?
> > Is the board multiple image which has to be separated by jig and/or
> manual.
> > Are there an internal/external comductors near the vicinity of the delam?
> > Victor,
> >
> > -----Original Message-----
> > From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer
> > Sent: Wednesday, October 23, 2013 11:01 AM
> > To: [log in to unmask]
> > Subject: Re: [TN] PCB EDGE DELAMINATION
> >
> > Pix don't come through. Send directly to Steve Gregory, and he'll post.
> >
> > -----Original Message-----
> > From: TechNet [mailto:[log in to unmask]] On Behalf Of Ramakrishnan
> Saravanan
> > Sent: Wednesday, October 23, 2013 11:27 AM
> > To: [log in to unmask]
> > Subject: [TN] PCB EDGE DELAMINATION
> >
> > Dear all,
> >
> > We have procured a pcb from our contract supplier in 2010. The board was
> > wired in 2013. After wiring during inspection , edge De-lamination was
> > noticed. What are the possible causes of edge De-lamination like one
> > attached. regards,
> >
> > R.Saravanan
> >
> > ______________________________________________________________________
> > This email has been scanned by the Symantec Email Security.cloud service.
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> [log in to unmask]
> >
> > ______________________________________________________________________
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> > For more information please contact helpdesk at x2960 or
> [log in to unmask]
> > ______________________________________________________________________
> >
>
>
>
> --
>
> Best Regards,
>
> *Reuven Rokah*
>
> Mobile: 972-52-6012018
> Tel: 972-3-9360688
> Fax: 076-5100674
> <http://www.rokah-technologies.com/>[log in to unmask]
> [log in to unmask]
> www.rokah-technologies.com
>
> **
> This e-mail message is intended for the recipient only and contains
> information which is CONFIDENTIAL and which may be proprietary of Rokah
> Technologies. If you have received this transmission in error, please
> inform me by e-mail, phone or fax, and then please delete all of the
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>
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>
> What is the shape of the delamination
> Is it at the same place? in all the PCBAs
> How many layers? materials?
> Del location and photos
>
>
> On Wed, Oct 23, 2013 at 7:09 PM, Victor Hernandez <
> [log in to unmask]> wrote:
>
> > Is the PCB/PWB stamp out? Router?
> > What is the thickness of the board in question?
> > Is the delamination on a smooth area, rough and/or break away zone, drill
> > holes or V score?
> > Is the board multiple image which has to be separated by jig and/or
> manual.
> > Are there an internal/external comductors near the vicinity of the delam?
> > Victor,
> >
> > -----Original Message-----
> > From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer
> > Sent: Wednesday, October 23, 2013 11:01 AM
> > To: [log in to unmask]
> > Subject: Re: [TN] PCB EDGE DELAMINATION
> >
> > Pix don't come through.  Send directly to Steve Gregory, and he'll post.
> >
> > -----Original Message-----
> > From: TechNet [mailto:[log in to unmask]] On Behalf Of Ramakrishnan
> Saravanan
> > Sent: Wednesday, October 23, 2013 11:27 AM
> > To: [log in to unmask]
> > Subject: [TN] PCB EDGE DELAMINATION
> >
> > Dear all,
> >
> > We have procured a pcb from our contract supplier in 2010. The board was
> > wired in 2013. After wiring during inspection , edge De-lamination was
> > noticed. What are the possible causes of edge De-lamination like one
> > attached. regards,
> >
> > R.Saravanan
> >
> > ______________________________________________________________________
> > This email has been scanned by the Symantec Email Security.cloud service.
> > For more information please contact helpdesk at x2960 or
> [log in to unmask]
> >
> > ______________________________________________________________________
> > This email has been scanned by the Symantec Email Security.cloud service.
> > For more information please contact helpdesk at x2960 or
> [log in to unmask]
> > ______________________________________________________________________
> >
>
>
>
> --
>
> Best Regards,
>
> *Reuven Rokah*
>
> Mobile: 972-52-6012018
> Tel:        972-3-9360688
> Fax:          076-5100674
>  <http://www.rokah-technologies.com/>[log in to unmask]
> [log in to unmask]
> www.rokah-technologies.com
>
> **
> This e-mail message is intended for the recipient only and contains
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>
>
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