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June 1998

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Subject:
From:
"John Haman Jr." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 24 Jun 1998 08:31:59 -0400
Content-Type:
text/plain
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text/plain (60 lines)
The laser method mentioned might be your only option but rather expensive
if
you do not have one.    Chemically stripping will most likely not work,
especially with no mask on the surface.  Soldermask strip is extremely
aggressive and will attack the butter coat.  If the boards are not very
expensive I would suggest a remake.

Not much of an answer, However that situation never really has one.

Good Luck
John Haman Jr.

----------
> From: Blanchet, Richard <[log in to unmask]>
> To: [log in to unmask]
> Subject: [TN] Fab: plug vias
> Date: Tuesday, June 23, 1998 4:19 PM
>
> Hello,
>
> If the solder mask in the vias has been cured (full plug), is there any
> way to remove it without damaging the boards ?  There's no solder mask
> on the surface beside in the vias. Thanks.
>
>
> Richard Blanchet
> Process Engineer, screening
> Viasystems Canada Inc.
> tel.: (514) 694-8900, ext. 4189
> fax: (514) 694-9776
> [log in to unmask]
>
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