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July 2003

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Subject:
Re: Ionograph reading for No clean v/s aqueous processed (watersoluble flux)
From:
David Douthit <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 15 Jul 2003 08:55:02 -0700
Content-Type:
text/plain
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text/plain (46 lines) 
Ken,

Is it possible that the components (parts/laminants) used in the "no-clean" manufacturing
process were not cleaned prior to assembly?

There is no such animal as "no-clean"!
The cleaning moved to the beginning of the manufacturing process!

David A. Douthit
Manager
LoCan LLC

Ken Patel wrote:

> Does NO Clean processed parts show more ionic contamination than aqueous
> processed parts when measured using ionograph? We are seeing third party
> part showing 50 plus microgram of NaCl per square inch. Is there a different
> ionograph measurement standard for No clean v/s aqueous washed (9.67
> microgram of NaCl per square inch)? Is there an IPC/industry spec for No
> clean processed parts?
>
> Re,
> Ken Patel
>
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