Supplier mentioned that it can be removed by fluxing process and they
don't usues any material of that color substance.
I bet is some Operator afraid of being reprimand and cover the issue.
This board, I think cost 10 over us dollars.
Maybe I should feedback to Customer 1st and let them check their process
again.
On Mon, 2 Oct 2006 09:43:31 -0400, Dehoyos, Ramon <[log in to unmask]>
wrote:
Need to take a tour and find out who of the two possible culprits have
that type of paint in house. If the paint is epoxy kind, chances are that
the board vendor made an error and spilled the paint.
Is it an expensive board? Perhaps the operator that spilled the paint did
not want to fess up due to concerns of being reprimanded. Check with
reference designator printing process (board house).
Regards, Ramon
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Saint Jerky Sent:
Monday, October 02, 2006 9:26 AM To: [log in to unmask] Subject: Re: [TN]
Customer or Supplier Inherent Defect? Share your views I just the
middleman for the sales of this PCB, now I am in dilemma whether to reject
this Analysis to the Supplier or claim it back to Customer.
From what I see, this paint should happened before the components is being
mounted since there isn't any trace of paint on those components surface.
But who did it? haha Yes, it a multi-layer board but the delamination area
have not pose an issue so far.
On Mon, 2 Oct 2006 13:17:39 +0100, Colin McVean <[log in to unmask]>
wrote:
Had you placed any sticky labels etc onto the assembly before
fluxing/soldering. It seems like something has flowed or blown over the
surface.
I would also be concerned about the amount of delamination noted on the
panel edged - it's a multilayer PWB! Ingress of moisture etc could cause
issues later.
Colin McVean M.Inst.C.T.
Production Manager Artetch Circuits Limited Main: 01903 725365 DD: 01903
712926 Email: [log in to unmask] www.artetch.co.uk
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Dan Mauro Sent: 02
October 2006 13:06 To: [log in to unmask] Subject: Re: [TN] Customer or
Supplier Inherent Defect? Share your views I
think it is interesting that no paint is present on any components from
what I can see.. That tells me it is supplier and/or your operation
created it!
Dan Mauro
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Saint Jerky Sent:
Monday, October 02, 2006 7:49 AM To: [log in to unmask] Subject: [TN]
Customer or Supplier Inherent Defect? Share your views
I encounter 1pcs of excess paint on PCB returned from customer.
Upon analysis by Supplier, they concluded that customer created the defect.
The details is as below:
Defect: Paint spread over the PCB
Analysis:
1) The affected surface was subjected to the fluxing process again and the
stain was found to be removed from the process.
2) The stain is unlikely to have been incurred during the bare board
processing, as fluxing process is conducted just before Final Inspection
and Packing,
3) If the stain is incurred during the bare board processing, it will have
been cleaned up during the fluxing process prior to inspection.
4) Final Inspection and packing does not uses any material that yield such
a colour substance
Photo: http://img242.imageshack.us/img242/7362/bareboardzd6.jpg
Based on the photo, tell me what you guys think? The chances that customer
created it is higher or supplier? Come and share your views for my
reference. Thanks.
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