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| From [log in to unmask] Fri May 30 07: |
03:34 1997 |
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Regarding soldermask stripping...
We are an assembly plant and sometimes we want to remove soldermask (PISM)
on PCB but just on a small area.
I was wondering if there is anything that we can use to remove soldermask
other than physically remove it with "x-acto" (considering you just want
to strip a little area on the board; not the entire board.)
Thanks in advance
Annie Laberge
Quality Engineer
Matrox Electronic Systems
At 07:12 PM 5/28/97 -0500, you wrote:
> Vince,
>
> Is this before or after cure? I've had some bad experience with
> stripping soldermask after being cured, especially batched stripped
> versus in-line spray method. Worse case scenario, conductors lifting
> from laminate, expecially in isolated areas. This was two years ago,
> so what has changed? I currently have a situation with a vendor where
> the soldermask is very thick, color is not to spec (no biggy) and
> slightly mis-registered (S/M runs on to lands). Our wireless group
> forwarded the PCB's back to the vendor to have the soldermask
> stripped. I was furious when I found this out, due to past
> experiences. Should I still be catious or has soldermask stripping
> tremendously improved.
>
> John Gulley - Process Quality Engineer
> Inet Inc
> 1255 W. 15th St.
> Plano, TX 75075-7270
>
>
>______________________________ Reply Separator
_________________________________
>Subject: RE: LPISM Stripping
>Author: "Bob Oliver; Jr." <[log in to unmask]> at Internet
>Date: 5/28/97 10:31 AM
>
>
>
>-----Original Message-----
>From: Anil K Singh [SMTP:[log in to unmask]]
>Sent: Saturday, May 17, 1997 11:21 AM
>To: TechNet
>Subject: LPISM Stripping
>
>We are using Coates LPISM could anyone suggest a good formulation for
>stripping cured LPISM boards.
>
>Thanks in advance
>
>Anil K Singh
>Linaks Microelectronics Ltd, India
>Fax:+91-522-222061, 315978
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