whoa again.  in regard to testing.  one would perform a point-to-point continuity/isolation test with something like a ditmco tester.  paddle cards would be inserted into the pressed-in connectors and interfaced to the ditmco machine (for example).

phil

-----Original Message-----
From: David Douthit [mailto:[log in to unmask]]
Sent: Thursday, December 11, 2003 8:59 AM
To: [log in to unmask]
Subject: Re: [TN] Parylene Piercing Press-fit Connectors...


Bob,

How thin is "thin"?

At what point would the thickness of the parylene begin to pose problems?

Is this "thin" parylene effectively protecting the circuitry?

What tests are needed to determine if there are problems?

David A. Douthit
Manager
LoCan LLC

=========================

"Barr, Bob" wrote:

> Steve:
>
> On this page, the vendor states press-fit connectors in general can be put
> on after parylene coating. I presume this is because a parylene coating is
> so thin the edges of the compliant pins will "bite" right through and make
> contact with the hole barrel with no ill effect on reliability. So,
> "Parylene Piercing Press-fit Connectors" was probably used in a generic
> sense, or some marketer has invented a buzz word for his connectors that
> really applies to all press-fit connectors in general. I don't know if any
> reliability studies have been done on this specifically.
>
> http://www.paratronix.com/apps/guide.asp
>
> =========================
> Bob Barr
> Manufacturing Engineering
> Formation, Inc.
> =========================
>
> > -----Original Message-----
> > From: Steve Gregory [mailto:[log in to unmask]]
> > Sent: Thursday, December 11, 2003 9:25 AM
> > To: [log in to unmask]
> > Subject: [TN] Parylene Piercing Press-fit Connectors...
> >
> >
> > Mornin' All!
> >
> > Yesterday I heard a new term I'm not familiar with; "Parylene Piercing
> > Press-fit Connectors". I've done a Google search and haven't
> > been able to come up
> > with any hits...has anybody else ever heard of this before?
> > Can you direct me to
> > a link somewhere about this?
> >
> > TIA
> >
> > -Steve Gregory-
>
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