Kelly,

Send me your FAX number. I've got a file on porosity testing that should
answer your questions. There is lots of info on this topic in the
industry. Check with your companies library for starters and don't
forget to check within the connector/contact industry (check the Holm
conference).

Paul Terranova
Analytical and Environmental Test Services Lab
Worldwide Module Components Group

 Digital Equipment Corp
 200 Forest Street
 Mail Stop: MRO3-1/D2
 Marlboro,  MA  01752-3085

'    Phone: (508)467-3109
* Fax: (508)467-6796
* Email: [log in to unmask]


        -----Original Message-----
        From:   Kelly Kovalovsky [SMTP:[log in to unmask]]
        Sent:   Monday, March 23, 1998 4:22 PM
        To:     [log in to unmask]
        Subject:        [TN] Gold Porosity

        I am looking for some information on gold porosity as it applies
to common PCB
        edge tab connector contacts. More to the point, I would like to
know:

        What is a good working definition of porosity?
        What is the common test(s) for porosity and the theory behind
the test?
        What are the common causes for test failure?

        Kelly Kovalovsky

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