Hey now, I only suggested the eraser as an indicator for the type of stain,
i.e. surface, plating contaminate, etc.

I wrote: "...take an ordinary pencil eraser and try to remove the stain, if
it comes off you'll probably have good results with a solution clean."

Notice I followed up with a solution clean.

This lowly Quality Assurance Manager knows a couple things now...

~grinning~

Franklin D Asbell

----- Original Message -----
From: Paul Klasek <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, March 16, 2000 2:37 PM
Subject: Re: [TN] stain&gold plating


> Whatever you do , if any QA mgr will suggest you PENCIL ERASERS ; desist ,
> go to archives ; we've had a discussion on this bad habit with Dave
Hillman
> not so long ago .
>
> This is the case of cure worst than illness , address the process .
>
> paul
>
> -----Original Message-----
> From: David Kim [mailto:[log in to unmask]]
> Sent: Friday, 17 March 2000 6:16
> To: [log in to unmask]
> Subject: [TN] stain&gold plating
>
>
>
>  I am looking for suggestions on "How to remove a stain on gold surface
and
> why does a stain happen on gold surface after plating?"
>
>  In electroless Ni/immersion Au plating, I have found many stain problems
> after plating. Threre are varied shapes of stains such as a spot, a line,
> and an irregulare shpae.
>
>  Anyone who can suggest a better idea?
>
>  thank you!
>
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