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November 1999

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Subject:
From:
Matthew Lamkin <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 10 Nov 1999 13:39:16 -0000
Content-Type:
text/plain
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text/plain (84 lines)
Hi there Steve, I'm sure that you've seen me say this before but this is
exactly what I "insist" upon before board are made.

I sent the manufacturers the single image data with all the layers that
I want step & repeating included
and they then have to send me back the step & repeated file with all the
borders, fiducials, border text
and direction of flow arrows etc that I require on my panels.

once I get & have checked/approved the file I then authorise them to
manufacture the boards.
As is the case, there are often occasions where the requested
panelisation has been misinterpreted
and I do not get the panel that I wanted (to suit my manufacturing
processes).

Using this method of checking does mean that there is a slight delay in
the boards getting done, but no more
than a day or so.

From this panelised file I get solder paste stencil, testpoint jig & now
P&P centroid information.
Also, if the PCB manufacturers was ever to go south, or fall out with me
then I have the data to enable exact
replicas of the panel to be made.
Also everything gets sent by email now, no more messing with my own
plots or modems etc.

If any PCB manufacturer cannot (or does not want to) work to this
procedure then its simple, they do not
get my business. However I find that they all want the business so are
happy enough to comply.

This may not be "normal" for the PCB manufacturers, but then as far as
we (the customers) are concerned
are we ever thought of as being normal?

You're the customer, tell them what "you" expect from them.

Tia -
Matthew Lamkin
Printed Circuitboard Draughtsman
Protec Fire Detection PLC.
Protec Hse, Churchill way,
Nelson, Lancashire.
England UK.
Email [log in to unmask]


<SNIP>
>
>But I found that a few of our vendors have told the buyer that this is not
>something they normally do...or the latest thing that I was told was that
>they do the panelization manually? I don't understand...
>
>I'm not educated enough about this, but I thought that a single image gerber
>is just stepped-and-repeated to give you the panel which is used to photoplot
>the artwork that the fab vendor has to have to build the fab. The file has to
>exist or the fab vendor wouldn't be able to make fab, right? So why am I
>getting such resistance when I ask for the panelized gerbers?
>
>What am I missing?
>
>I can still get a stencil made without the panelized gerbers, but I have to
>wait until the paneled fab actually gets here so I can send it to my stencil
>vendor with the single image gerber...my stencil vendor will take care of the
>step-and-repeat, but it's kind of a hassle. It would be so simple to do
>things by email...
><SNIP>

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