Erick:
Board fabricators generally touch up any scratched circuits that is exposed
with mask.
Also the dust you see may be from routing of the boards and they should have
been wiped clean before shipping.The vaccuum on the router may not be
working upto par or the dust collection may be full. There is no such thing
as a spotless board but they can be clean.You should let your fab guys know
that this is not acceptable for future orders.
Hasl with excess solder can be rehot levelled but they have to be in panel
form.
I would communicate with the fabricators of all these issues so that they
can take steps to correct it for future orders.It looks like these boards
were shipped without inspection.
Your issues are more procedure related and this does not add to the cost of
fabrication. These are all standard procedures followed by manufacturer.
Sona Sitapara
Fineline Circuits Inc.

----- Original Message -----
From: "ekalgren" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, June 14, 2005 11:54 AM
Subject: [TN] PCB rejection criteria


> Good morning everyone,
>
>
>
> I've got a question on bare PCB's.  These are relatively simple boards
> that
> have been red flagged in incoming inspection for having scratches in the
> soldermask that expose the underlying copper.  Now, even I know that this
> is
> truly a defect.  QA has also written up the entire lot of boards for being
> dusty and a couple of the lot for having "excess solder."  The excess
> solder
> is just a couple of PTH's that are partially filled by the HASL.  I'm not
> sure what the dust is but it blows off easily and doesn't seem to be
> affecting anything other than the inspector's sense of cleanliness.
>
>
>
> My question to all of you out there is: how should I handle the dust
> issue?
> Is this typical of boards coming in from the shop and should I tell the
> inspectors to go easier in the future or do I demand spotless, dust free
> boards from our supplier?  I don't want to accept junk but at the same
> time
> I don't want to drive costs up by over inspecting. Where does one draw the
> line?
>
>
>
> Thanks in advance,
>
>
>
> Eric Kalgren
>
> Manufacturing Engineer
>
> Continental Tool and Microwave Company
>
> [log in to unmask]
>
>
>
>
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