Niche Only.
Typically if called out by our customer or for a limited time if we're having issues with say a particular lot of components "if" allowed by the customer.
Rich Kraszewski
Senior Staff Process Engineer
Phone: (920) 969-6075
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
Sent: Thursday, March 7, 2019 10:25 AM
To: [log in to unmask]
Subject: Re: [TN] [External] Re: [TN] Plasma before Coating
[EXTERNAL] This email was sent from outside of Plexus. Use caution when opening attachments or links from unknown senders.
.
But I would guess those are for niche applications, or is it part of your mainline process?
*Douglas Pauls *| Principal Materials and Process Engr | Advanced Operations Engineering
*COLLINS AEROSPACE*
400 Collins Road NE, MS 108-101, Cedar Rapids, IA 52498 USA
*Tel:* +1 319 295 2109 | *Mobile: *+1 319 431 3773
[log in to unmask]
On Thu, Mar 7, 2019 at 10:24 AM Richard Kraszewski < [log in to unmask]> wrote:
> Doug we have vacuum plasma in several locations.
> For general PCBA applications we use blends of Argon/Oxygen. With
> oxygen as high as 50%.
> For MicroE applications we use primarily use Argon, but sometimes blends.
>
> Rich Kraszewski
> Senior Staff Process Engineer
> Phone: (920) 969-6075
>
> * * * * * * * * CONFIDENTIALITY NOTICE * * * * * * * *
>
> This e-mail and any attachments are confidential from Plexus Corp. and
> may contain information which is privileged, confidential, and/or
> protected by non-disclosure agreements. They are intended solely for
> the use of the named addressee(s). . Any unauthorized use or
> disclosure may be unlawful. If you are not a named addressee, you
> must not use, disclose, retain or reproduce all or any part of the
> information contained in this e-mail or any attachments If you have
> received this transmission in error, please destroy it and notify us
> immediately by return e-mail or by calling
> + 1 888 208 9005.
>
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
> Sent: Wednesday, March 6, 2019 3:05 PM
> To: [log in to unmask]
> Subject: Re: [TN] [External] Re: [TN] Plasma before Coating
>
> [EXTERNAL] This email was sent from outside of Plexus. Use caution
> when opening attachments or links from unknown senders.
> .
> I would agree. Every time I have looked at open air plasma, it
> appears that it works well for flat substrates, like bare boards, but
> not for full assemblies with any kind of topography.
>
> Out of curiosity, when you vacuum plasma, what gas are you using? We
> generally use argon so as not to blacken silver parts.
>
> *Douglas Pauls *| Principal Materials and Process Engr | Advanced
> Operations Engineering
>
> *COLLINS AEROSPACE*
>
> 400 Collins Road NE, MS 108-101, Cedar Rapids, IA 52498 USA
>
> *Tel:* +1 319 295 2109 | *Mobile: *+1 319 431 3773
>
> [log in to unmask]
>
>
> On Wed, Mar 6, 2019 at 1:50 PM lduso - Diamond-MT.com <
> [log in to unmask]>
> wrote:
>
> > Not as a standard procedure on CCAs but a couple here and there. It
> > came about due to poor surface energy tests and it does help. Quite
> > often on metallic parts like stainless steel and nickel before
> > parylene coating. All done in a vacuum. Although I would love to try
> open-air plasma.
> >
> > Lloyd Duso
> > General Manager
> > Diamond-MT
> > (814) 535-3505
> >
> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.Diamond-2Dmt.c
> om&d=DwIGaQ&c=ilBQI1lupc9Y65XwNblLtw&r=lTRDjB8ojaf7ZaJ9DHeDAm7e-HFP9fx
> Ikv6fRnV49HE&m=dJRtm11tJ48PjmEHehdYCkm0ByCcyMtCyHkwkwBJdc8&s=6bQjh6Gzv
> ur5kWLWK9CBCfohDtqmmL-mf2Uqex08hW0&e=
> > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.Diamond-2Dmt.
> > com&d=DwMFaQ&c=ilBQI1lupc9Y65XwNblLtw&r=lTRDjB8ojaf7ZaJ9DHeDAm7e-HFP
> > 9f
> > xIkv6fRnV49HE&m=w13JU2W1V8UO5sePYWQBU04jy9DhgL4qXpKHfLaXFpA&s=xlQdpA
> > Xq DTjxXvzI2GcrjVv6--XbIxDd8PTkCsO-6WE&e=>
> >
> >
> > On Wed, Mar 6, 2019 at 2:42 PM Douglas Pauls <
> > [log in to unmask]> wrote:
> >
> >> Good morning all,
> >> Are any of you routinely treating assembly surfaces with plasma
> >> prior to conformal coating? We do not, except for very niche
> >> applications, but I wanted to see if that was a mainstream process for anyone else.
> >>
> >> *Douglas Pauls *| Principal Materials and Process Engr | Advanced
> >> Operations Engineering
> >>
> >> *COLLINS AEROSPACE*
> >>
> >> 400 Collins Road NE, MS 108-101, Cedar Rapids, IA 52498 USA
> >>
> >> *Tel:* +1 319 295 2109 | *Mobile: *+1 319 431 3773
> >>
> >> [log in to unmask]
> >>
> >
>
|
