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April 2000

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Subject:
Re: Cleanliness of boards
From:
Douglas Pauls <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 10 Apr 2000 08:35:49 EDT
Content-Type:
text/plain
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text/plain (31 lines) 
In a message dated 04/10/2000 7:06:42 AM US Eastern Standard Time,
[log in to unmask] writes:

>
>  What level of conductivity in water do you accept if you use water to
rinse
> boards in an inline cleaner? In IPC-AC-62A p 12 the recommended level is 1
> microsiemens/Cm if one is to conformally coat the boards afterwards.

We recommend the use of deionized water in all aqueous cleaning operations.
For us, deionized water is 2.0 megohm-centimeters of resistivity or higher.
Being metrically challenged, I am not sure what that is in microsiemens per
centimeter.

Doug Pauls
CSL

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