TECHNET Archives

December 2012

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Inge Hernefjord <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Inge Hernefjord <[log in to unmask]>
Date:
Thu, 6 Dec 2012 23:16:00 +0100
Content-Type:
text/plain
Parts/Attachments:
text/plain (85 lines)
Is it a MIL product?
Inge

On 6 December 2012 20:02, Tontis, Theodore <
[log in to unmask]> wrote:

> Angel,
>
> There needs to be a functional pre and post pot test. The Pre-pot test
> will insure you are not potting defective material that you cannot
> rework after potting. Post -Pot will identify any defects that might
> have occurred during the potting process or defects they might have made
> it through the previous screening process.
>
> As for validation of the process itself it would depend on the end use
> environment. Here are some tests I have used in the past to confirm a
> potting process as well as process capability.
>
> 1. Water submersion testing in a pressure chamber to simulate water
> submersions at different depths. (The product needed to function in
> periodic depths of water up to 30ft)
> 2. Cross sectioning after potting to confirm 100% coverage of the
> potting material as well as adhesion to the walls of the enclosure
> 3. Salt Fog and functional/cross sectioning
> 4. HALT and HAST testing
>
> Regards,
>
> Ted T.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Richard Kraszewski
> Sent: Thursday, December 06, 2012 10:05 AM
> To: [log in to unmask]
> Subject: Re: [TN] PCB assembly potted evaluation validation
>
> Typically AABUS.  Function testing of some type based on purpose &
> environment of the end use.
> Some type of drop or HALT test might be nice.
>
> Rich Kraszewski
> (920)969-6075
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Reyes, Angel LAM2
> 4429
> Sent: Wednesday, December 05, 2012 10:43 PM
> To: [log in to unmask]
> Subject: [TN] PCB assembly potted evaluation validation
> Importance: High
>
> Hello TechNetters;
>
> Does any one know or recommend any test standard to validate performance
> and reliability for PCB (FR4 0.031" THCK) double side SMT assemblies
> potted with epoxy or polyurethane
>
> Regards,
> Angel
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud
> service.
> For more information please contact helpdesk at x2960 or
> [log in to unmask]
> ______________________________________________________________________
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud
> service.
> For more information please contact helpdesk at x2960 or
> [log in to unmask]
> ______________________________________________________________________
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

ATOM RSS1 RSS2