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April 1999

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Subject:
From:
Wade Oberle <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 13 Apr 1999 07:03:43 -0500
Content-Type:
text/plain
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text/plain (66 lines)
Why do you feel you need to do your SMT in a clean room?  What is/are
the driving forces behind this?

Wade Oberle
[log in to unmask]


        -----Original Message-----
        From:   Phillip Ingram [SMTP:[log in to unmask]]
        Sent:   Monday, April 12, 1999 4:06 PM
        To:     [log in to unmask]
        Subject:        [TN] Clean Room Requirement

        I've monitored the groups questions and answers closely for the
last year
        and a half and recieved many
        usefull pointers.  I have not had a need to pose my own query
until now.

        I've been tasked with evaluating the need change to a 'clean
room'
        enviorment for our surface mount
        assembly operation.  We control temperature and humidity at
present.   We
        are a low volume house
        that has been doing suface mount assembly for close to 10 years.
We do a
        mixture of board
        technologys, down to 15 mil pitch.  We are planning some new
assemblies
        using micro bga's.

        I would appreciate any thoughts as well as actual practices from
this group.

        Thank-you for your consideration
                Phil


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