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Reply To: | TechNet Mail Forum. |
Date: | Mon, 17 Nov 1997 21:54:52 +1100 |
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Please, can you tell me what ROSE is?
Thankyou
At 09:53 15/11/97 UT, you wrote:
>Ken,
>
>Your wash system is tracking the resistivity or conductivity of your rinse
>water and your filter plant is taking care of such contaminants that are
>entering the process.
>
>The question is how much contamination is on the assembly, and has it all
been
>removed? I doubt that you can accurately maintain the amount of contamination
>that is being applied to your assembly both in your process and that of your
>PC Fab shop.
>
>It is therefore a good idea to conduct regular ROSE tests to ensure that your
>process is always under control. The sampling rate to achieve that is another
>subject that should be addressed.
>
>Graham Naisbitt
>---------------------------------------------------------------------------
---
>----
>[log in to unmask] Concoat Ltd
>Tel: +44(0)1276691100 Alasan House, Albany Park
>Fax: +44(0)1276691227 Camberley GU15 2PL UK
>
>-----Original Message-----
>From: TechNet On Behalf Of Ken Patel
>Sent: Thursday, November 13, 1997 10:26 PM
>To: [log in to unmask]
>Subject: [TN] Do we really need ionic contamination measurement
equipment?
>
>SMT/Wave Process Expert,
>
>If the conductivity of the DI water of wash machine is maintained along with
>good maintenance of the wash machine, do we still feel that it is always or
>must to have ionic contamination measurement equipment like one of that
>Alphametal makes?
>
>I am really interested in pros and cons of having such system from need
>point of view rather than sales pitch (to show to prospective customers).
>
>
>Re,
>Ken patel
>______________________________________________________
>Ken Patel Phone: (408) 490-6804
>575 Cottonwood Dr. Fax: (408) 490-6859
>Milpitas, CA 95035 Beeper: (888) 769-1808
>
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Nicholas Kane
Axion Australasia
Suite 3, 651 Canterbury Road
Surrey Hills
Victoria 3127 Australia
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