Hi Marco,

I am happy to provide answers to your questions.  I think there are
probably others on Tech-Net that have similar questions, but don't know who
to ask.

I don't know of any text book that describes the phototooling process well.
 IPC Standard D-310C contains a lot of information about phototools, but
most of it is over 10 years old and pre-dates laser photoplotters.  Still,
it contains useful information about contacting techniques and general
process information.  We (IPC) are in the process of writing some more
updated documents.

I also have several documents (Article reprints, Technical bullitins, etc)
that DuPont has published to address various phototooling issues.  If you
e-mail directly to me your postal address, I will be glad to send you
copies of these.  To be fair, other vendors of phototooling products also
have published technical information that you might find useful.

Best regards,

Bob Seyfert
Technical Manager - Phototools
DuPont Electronics



At 08:22 AM 8/7/98 +0800, you wrote:
>Hi Bob,
>
>Thanks for all the help Bob.  I appreciate all the suggestions you've
>already given. By the way, do you know any text or document that can help
>me study photo tool behavior better?  I've been working on photo tools for
>almost 2 years but mostly without proper training.  It's really hard to
>solve problems when you don't know the basics.
>
>Thanks again!
>
>Marco
>

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