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December 1999

DesignerCouncil@IPC.ORG

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Subject:
From:
"Kelly M. Schriver" <[log in to unmask]>
Reply To:
DesignerCouncil E-Mail Forum.
Date:
Thu, 16 Dec 1999 06:19:58 -0600
Content-Type:
text/plain
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text/plain (93 lines)
isola possibly?

Kelly
-----Original Message-----
From: Mark Ross <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Wednesday, December 15, 1999 10:47 AM
Subject: Re: [DC] [Re: [DC] PWB High Voltage Material Choices?]


>That i definitely identifies the laminate vendor, however I am having an
MBF
>(Massive Brain Fart) as to who it identifies?  Anyone?  I remember who NP
is
>but not i.
>
>Mark Ross
>
>
>-----Original Message-----
>From: Greg Kaskey [mailto:[log in to unmask]]
>Sent: Wednesday, December 15, 1999 11:12 AM
>To: [log in to unmask]
>Subject: Re: [DC] [Re: [DC] PWB High Voltage Material Choices?]
>
>
>Mark (All),
>
>Thank you the information.
>
>More details on exsisting board:
>This is a board that has been in production and it is being made again.
The
>board material has an "i" Watermark on it (means ?).  It looks like regular
>FR-4.
>
>Greg Kaskey
>
>------------------------------------------
>Mark Ross <[log in to unmask]> wrote:
>Is this something that is already being produced?  FR-4 can be made in that
>thickness as well as many other materials.  If this board is not in
>production yet and the board has no solder mask it seems to me that you
>would need at least 1 inch or greater between the 30kv traces and anything
>else due to its ability to jump (ESD, I have seen an ESD gun that at 25KV
>could jump a 2 inch gap once the air was sufficiently charged)across
>conductors.  Also there may be UL requirements if this product has to go
>through their processes (For example at 120 VAC minimum spacing is ~0.063"
>between AC hot and other conductors). The clear coating could be some form
>of conformal coating.  If you need more info let me know.
>
>Mark Ross
>
>
>-----Original Message-----
>From: Greg Kaskey [mailto:[log in to unmask]]
>Sent: Wednesday, December 15, 1999 10:07 AM
>To: [log in to unmask]
>Subject: [DC] PWB High Voltage Material Choices?
>
>
>All,
>
>I hope you are doing well.
>
>What PWB Material do I call out for one that is 0.074 inch thick and it
does
>High Voltage Multiplying with 30K Volt Output?
>
>The board has no solder mask and is encapsulated in a "Black, Rubber Like
>Material".  Also, the Board looks like it has some kind of clear coating
>that
>does not remind me of a "normal" protective coating which is applied to the
>entire finished assembly; it is soft vs. hard and can be easily scraped
off.
>
>What questions would I need to ask to determine some of the material
>choices?
>
>Thanks for Helping,
>
>Greg Kaskey
>Sector Electronics, Inc.
>V: 770-955-8044
>E: [log in to unmask]
>
>____________________________________________________________________
>Get free email and a permanent address at http://www.netaddress.com/?N=1
>
>
>____________________________________________________________________
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