Joe

At present there is no formal SIR spec you can use.

I have a draft of the new specs that I can send you if you you wish. This is
being used by several companies now to characterise their manufacturing
process.

Please contact me directly off-line if you want a copy.

If Steve is watching, maybe you put a pdf onto your web site?
--
Regards Graham Naisbitt

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one over a swimming pool!

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> Fellow technets,
>
> We are in the process of selecting a new saponifier for our in-line cleaner
> and developing the accept/reject criteria for the selection.  We mainly use
> RMA fluxes on densely populated, double sided smt boards with various BGAs.
> The typical visual and ionic contamination tests (using an Omegameter) will
> be run using test boards, and we would consider other tests as required such
> as having a lab perform a SIR test.  Some suppliers of saponifiers have
> offered to run cleanliness test as part of the evaluation process.
>
> Would anyone like to comment on:
> *       What types of tests should be run to determine the cleanliness of a
> populated board when evaluating different saponifiers?
> *       What IPC spec defines the SIR requirements and methodology?  What
> are the benefits of running a SIR type of test as far as cleanliness goes?
>
> Look forward to your inputs.  thanks again
>
> joe
>
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