Interesting this measling issue...

What if these boards are to be used in an environment where
temperature and humidity are subject to change (big changes)?  And can you
be sure boards like that can be coated without entrapping humidity?

Just some thoughts...

JF

> -----Original Message-----
> From: Sauer, Steven T. [mailto:[log in to unmask]]
> Sent: Tuesday, June 05, 2001 12:45 PM
> To: [log in to unmask]
> Subject: Re: [TN] Measling...
>
>
> Hi Steve,
> Sorry about the tardy response but to answer your question
> I'll use one
> word, "NO."
> The image depicts a classic case of measling, characterized
> by distinct
> white spots (which have always showed up quite nicely on polyimide
> substrates) contained within the knuckle of the weave and
> does not reduce
> the distance between adjacent conductors on the same plane by
> less than 50%.
> As you stated, the assembly was supposedly baked prior to
> rework..., one
> more observation is that the operator also supposedly
> staggered the rework
> by not reworking adjacent DIP leads one after the other.
>
> Steve Sauer
> Mfg. Engineer
> Xetron Corporation
>
> -----Original Message-----
> From: Stephen R. Gregory [mailto:[log in to unmask]]
> Would any of you have any REAL hesitation about accepting
> this assembly?
>
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