Your ESD control program does not seem to meet your product requirements.
Why are you using a poly bag that you know charges your product?  Anti
static and shielding bags are inexpensive and now cost little more than the
plain poly bags.

Alan Cash

> ----------
> From:         Paul Klasek[SMTP:[log in to unmask]]
> Reply To:     TechNet E-Mail Forum.;Paul Klasek
> Sent:         Tuesday, January 05, 1999 4:11 PM
> To:   [log in to unmask]
> Subject:      Re: [TN] destaticising p/carbon .
>
> Hi Bev
>
> Yes it looks like I'll get out of the ditch with the contact reliability
> with few leads already ; thanks
>
> on those polycarbon windows I wanted to ask you Nortel folks specifically
> ;
> you must use millions of them on LCDed phones  ; did you experience any
> static particles pick up from inside ? Do you have ionisers on floor over
> there in frozen lands ( low HR in heated winter ? ) ?
> The discharge as I said is not a problem ; but than it goes to (charged)
> polybag and than we're stuck (charged)
> With our QC bit INXS ; they hunt for every spec with magnifier !
>
> Thanks again
>
> See you
> Paul Klasek
> http://www.resmed.com
>
>
> > ----------
> > From:         Bev Christian[SMTP:[log in to unmask]]
> > Sent:         Wednesday, 6 January 1999 0:21
> > To:   'TechNet E-Mail Forum.'; 'Paul Klasek'
> > Subject:      RE: [TN] Reliability > Steam Test ? ; & destaticising
> > p/carbon .
> >
> > Paul,
> >       >We have this batteries (standard buttons)
> >        >socket
> >       >Now : how do I validate that the connection will stay on ( some
> 5mV
> > drain )for 3-5 years ? ; class 2 product
> >
> > For your first problem you seem to be concerned about contact resistance
> > over time.  Why not do a Battelle Class II (or is that III?) test?  This
> > involves measuring the contact resistance as the mated surfaces are
> > exposed
> > to a mixture of chlorine, nitrous oxides and either sulfur dioxide or
> > hydrogen sulfide (again I can't remember which) at the ppm level in
> > nitrogen.  If you check the Technet archives you will find a few
> addresses
> > of places that do this testing, besides the Battelle Institute of
> course.
> >
> > >we have this molded p/carbon windows over LCD's ;and they do they
> charge
> > up
> >
> >  For your second problem, why not keep the plastic face plates in a high
> > humidity cabinet and only pull them out as needed, say 25 or so at a
> time?
> > Can you raise the RH in the area where the face plates are applied?
> >
> > regards,
> > Bev Christian
> > Nortel
> >
> > > -----Original Message-----
> > > From:       Paul Klasek [SMTP:[log in to unmask]]
> > > Sent:       Monday, January 04, 1999 5:05 PM
> > > To: [log in to unmask]
> > > Subject:    [TN] Reliability > Steam Test ? ; & destaticising p/carbon
> .
> > >
> > > Dear techies ;
> > >
> > > apart from obvious I have today two problems ; if you could help
> please
> > :
> > >
> > > 1)
> > >
> > > We have this batteries (standard buttons) with the legs spot welded on
> ,
> > > which we handsolder ( with all of the pitfalls ) onto our main boards
> ;
> > > after the batteries happily age in store ; etc. .
> > >
> > > My argument is to reflow a socket on ( found a couple of good ones )
> and
> > > pop
> > > in the button in assembly of complete unit .
> > > Easy so far .
> > > Now : how do I validate that the connection will stay on ( some 5mV
> > drain
> > > )
> > > for 3-5 years ? ; class 2 product ( http://www.resmed.com )
> > > The contact is Nickel on Nickel ( I think ; or is the batteries case
> > > Chromed
> > > ? ) ; is there any Steam Accelerated Test for contacts validity in the
> > IPC
> > > arsenal ;
> > > or MIL ; the faster the better ?
> > >
> > > Werner ? ; or whoever went through this ?
> > >
> > > 2)
> > >
> > > This second one is cute ; we have this molded p/carbon windows over
> > LCD's
> > > ;
> > > and they do they charge up ! ; wounding QC in the process as they pick
> > up
> > > every minute spec of dust on the > inside< of the machines (and no,
> it's
> > > not
> > > the red bulldust from Australia's hinterland ; the plant is scrubbed
> > daily
> > > )
> > > ;
> > > therefore subsequently causing reopening (stressing of screw ports) ;
> > > cleaning ; etc. .
> > >
> > > Is there any plastic fellow pointing me to something like permanent
> > > surface
> > > polarizing (UV light is doing something ?) ;
> > > ( no degrading antistat coatings as they'd wear of outside )
> > > thus making the p/carbon less prone to such a charge build up (up to
> > 5kV)
> > > .
> > > Ionizing will not help : the unit goes to a poly bag before box , and
> > > picks
> > > up the charge from there .
> > > The cost of antistat bag of that size (500 x 300mm) is astronomical .
> > >
> > > Thanks a lot folks
> > >
> > > Paul Klasek
> > > http://www.resmed.com
> > >
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