You could do the masking yourself to reduce cost.
Ed Popielarski
Engineering Manager
970 NE 21st Ct.
Oak Harbor, Wa. 98277
Ph: 360-675-1322
Fx: 206-624-0695
Cl: 360-544-2289
“It's one kind of victory to slay a beast, move a mountain, and cross a chasm, but it's another kind altogether to realize that the beast, the mountain, and the chasm were of your own design.”
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick
Sent: Monday, March 20, 2017 9:51 AM
To: [log in to unmask]
Subject: Re: [TN] WG: [TN] Screen On Insulation
Bob,
I've used SCS in Indianapolis, but they have many other branches.
Is a batch process. Cost is in masking, if required. Typically, the labor intensive part.
Call them and find out
Steve
https://scscoatings.com/
On Mon, Mar 20, 2017 at 12:46 PM, lduso - Diamond-MT.com < [log in to unmask]> wrote:
> Bob
>
> Considering parylene is all done by batch process, pricing has a much
> to do with that batch size, The largest effect on cost is the prep
> time. Masking is labor time and that is costly. Parylene materials are
> pricey but not outrageous. Let me know if you want more details.
>
> Lloyd Duso
> Plant Manager
> Diamond-MT
> (814) 535-3505
> www.Diamond-mt.com
>
> On Mon, Mar 20, 2017 at 12:05 PM, Robert Kondner <
> [log in to unmask]>
> wrote:
>
> > Torsten,
> >
> > Do you know how thick a parylene coating is? My recollection is
> > pretty thin.
> >
> > So I checked, very high dielectric strength, thickness typically
> > under 1 mil but it can be built up further with longer processing time.
> >
> > Any idea wat coating with parylene cost for a small batch of boards?
> >
> > Thanks,
> > Bob Kondner
> >
> >
> > -----Original Message-----
> > From: TechNet [mailto:[log in to unmask]] On Behalf Of Torsten Hagge
> > Sent: Monday, March 20, 2017 9:17 AM
> > To: [log in to unmask]
> > Subject: [TN] WG: [TN] Screen On Insulation
> >
> > Hi,
> >
> > cheap solution could be a 1mil kapton tape with the mention risk of
> > air gaps, fine and cost expensive solution parylene HT coating
> > before
> placing
> > the ferrite cores...
> >
> > Take care
> > Torsten
> >
> >
> >
> > Best Regards
> >
> > KRISTRONICS GmbH
> >
> > Dipl.Ing. (FH) Torsten Hagge
> > team leader HW development
> > Gewerbegrund 5-9
> > 24955 Harrislee
> > Telefon +49 (0) 461 7741-624
> > Telefax +49 (0) 461 7741-642
> > [log in to unmask]
> > www.kristronics.de
> > Place of jurisdiction: Flensburg, commercial register: HRB 1433 FL
> > CEO Dipl.-Ing. oec. Thormod Ohm VAD-Id DE 811182059 Bank account:
> > Deutsche Bank AG Flensburg, account 4216610, bank number
> > 21570011
> > IBAN: DE32 2157 0011 0421 6610 00, BIC: DEUT DE HH 215 P Please
> > consider the environment before printing this e-mail
> >
> >
> >
> > -----Ursprüngliche Nachricht-----
> > Von: TechNet [mailto:[log in to unmask]] Im Auftrag von Robert Kondner
> > Gesendet: Freitag, 17. März 2017 21:11
> > An: [log in to unmask]
> > Betreff: [TN] Screen On Insulation
> >
> > Hi,
> >
> >
> >
> > We have a PCB that turns out to require 2500VAC test for 60 seconds
> > and
> we
> > had some flash over on pads to vias. We also have a planar ferrite
> > transformer with primary windings on one side.
> >
> >
> >
> > Does anyone know of a screen on insulation material that can be used
> > to increase flash over voltages? I would like to get a 2 or 3 mils
> > of
> material.
> > My other option is to have a laser cut layer of isolation but that
> > could leave air paths under the material.
> >
> >
> >
> > Any other ideas welcome.
> >
> >
> >
> > Thanks,
> >
> > Bob K.
> >
>
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