Check with the IPC, I think it is still available from their bookstore. The
pictures are nice and clear when you buy an original copy.
----- Original Message -----
Wrom: YRWTQTIPWIGYOKSTTZRCLBDXRQBGJSNBOHMKHJYFMYXOEAIJJPHSCRTNHGSW
To: <[log in to unmask]>
Sent: Friday, January 10, 2003 11:09 AM
Subject: Re: [TN] Small spots on etch line
> Hi All,
>
> I just rediscovered IPC-PE-740, Troubleshooting for Printed Board
> Manufacture and Assembly, and Plasma Hole Preparation starts on page 91.
>
> The subcommittee reads like a who's who of the industry including several
> frequent TechNet contributors - Patricia Goldman (Chair) and Susan
Mansilla.
>
> Connie & Randy, I'll burn a ROM and bring ya copy next week. IHS is
getting
> me a better copy than what's currently in their system - the bloody photos
> are blobs due to the scanning but it's a start.
>
> Hans
>
> You can run . . . but you'll only die tired.
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Hans M. Hinners
> AC-130 Systems Engineer (Hardware)
> Warner Robins Air Logistics Center (WR-ALC)
> 226 Cochran Street
> Robins AFB, GA 31098-1622
> Tele: (478) 926 - 5847 [DSN Prefix: 468]
> Fax: (478) 926 - 4911
> mailto:[log in to unmask]
>
> -----Original Message-----
> Wrom: ZIDREXCAXZOWCONEUQZAAFXISHJEXXIMQZUIVOTQNQEMSFDULHP
> Sent: Wednesday, January 08, 2003 7:07 PM
> To: [log in to unmask]
> Subject: Re: [TN] Small spots on etch line
>
>
> Randy,
>
> You might want to take the cross section that the pictures came from and
> perform a horizontal section to give you a better look as to if it is
fibers
> and there origin
> Scott B. Westheimer
> General Manager, Gultech North Carolina, Inc.
> 5800 McHines Place
> Raleigh, North Carolina 27616
> Phone: (919)872-0100
> Fax: (919)713-4849
> Toll Free: 1-866-GULTECH
> Email: [log in to unmask]
> http:///www.gultechna.com
> ----- Original Message -----
> Wrom: QQWOYIYZUNNYCGPKYLEJGDGVCJVTLB
> To: <[log in to unmask]>
> Sent: Wednesday, January 08, 2003 4:42 PM
> Subject: Re: [TN] Small spots on etch line
>
>
> > Thanks Susan,
> > We will check this tomorrow! I'll let everyone know the out come!
Right
> > now we are pulling our hair out here! As a alternate supervisor of this
> > shop and have never had to deal with this and uppers, wanting
production.
> > I'm just pull things out of the air, trying to figure this out.
> >
> > Thanks for all the help from everyone!
> > Randy
> >
> > On Wed, 8 Jan 2003 16:13:24 EST, [log in to unmask] wrote:
> >
> > >Randy
> > >Are you seeing these "spots" in the as polished condition prior to
> > >microetching the mount" ? If you are, it can usually mean that there
is
> > >contamination there that has been plated around. That would help in
> trying
> > >to find out what it is.
> > >
> > >Another thing you can do with your process is to take your panels
through
> > >drill and etchback processing and then instead of going through the
> > >electroless line - put them through the oxide line. The metallic
areas -
> > >ends of inner layers - should all darken with the oxide. If there is
> resin
> > >or non-metallic areas on the ends of the inner layers they won't be
> coated
> > >with the oxide.
> > >
> > >The fact that there is an indentation in the inner layer where the
"ball"
> > is
> > >located really is a concern when trying to troubleshoot what is
> happening.
> > >If the glass bundles are laying on top the inner layer and are being
> plated
> > >around, I wouldn't expect to see the indentation - almost as though
they
>
> > have
> > >been forced into the end of the inner layer.
> > >
> > >Susan Mansilla
> > >Robisan Lab
> > >
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