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October 2011

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From:
"Whittaker, Dewey (EHCOE)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Whittaker, Dewey (EHCOE)
Date:
Thu, 27 Oct 2011 14:44:22 -0700
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With Doug's knowledge on this topic his answers are in the bag. For half
in the bag answers call (names removed by Legal).
Dewey


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Thursday, October 27, 2011 2:27 PM
To: [log in to unmask]
Subject: Re: [TN] ESD packaging material issue

Yes. Doug said it better than I.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Pauls
Sent: Thursday, October 27, 2011 4:12 PM
To: [log in to unmask]
Subject: Re: [TN] ESD packaging material issue

In addition Wayne,  if the boards are being put into the bags directly 
after a heat-based cure (e.g. oven) and you do not allow them to cool to

room temperature first, the coating will stick to the bags.  Check to
see 
when your operators are putting the assemblies into the bags and make
sure 
they are not shortcutting the cure process.

Doug Pauls



Phil Bavaro <[log in to unmask]> 
Sent by: TechNet <[log in to unmask]>
10/27/2011 03:58 PM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
<[log in to unmask]>


To
<[log in to unmask]>
cc

Subject
Re: [TN] ESD packaging material issue






Wayne,

Something doesn't sound right here.  Solithane S-113 is a polyurethane
and 
my experience is that fully cured urethane does not normally stick to
the 
static dissipative interior of a multilayer ESD shielding bag.

I would check to ensure that the conformal coating is fully cured before

it gets put into the bag.

I'll admit I haven't ever used Solithane S-113 and had a hard time
finding 
the data sheet.  Uniroyal was the manufacturer on the only archived 
datasheet I could find but the current website eluded me.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of E-Mail Forum Wayne 
Knapp
Sent: Thursday, October 27, 2011 1:13 PM
To: [log in to unmask]
Subject: [TN] ESD packaging material issue

Hi Technetters,
I could use your help resolving an issue I?m having with the ESD bags
that 
we are currently using for packaging. The ESD bags are sticking to the 
conformal coating (Solithane S-113) on the CCAs that are placed in the 
bag. We cannot change the coating that is used on the CCAs, so we are 
looking for ESD safe packaging bags that will not stick to the CCAs.
Does 
anyone know if there is an ESD bag (material) that would not stick to
the 
CCAs?  Any help identifying a suitable ESD bag material and supplier
would 
be appreciated.
Thanks,
Wayne

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