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Date: | Sat, 28 Jun 2008 07:41:29 +0800 |
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Will like to understand and clarify the following (though it seems like a self answered question but quite surprise about "1 minute" maybe design/in mind for manual measurement)
Base on IPC 9701 it indicated that: using a data logger to scan interval durations of less
than 1 minute is mandated.
-->So am I right that with a data logger scan
time less than 1 minute, it is considered a failure with 5 scans more
than 20% nominal resistance increase (maximum)?
Thanks and Have a Nice Weekend!
________________________________
From: TechNet on behalf of Werner Engelmaier /*
Sent: Sat 6/28/2008 4:30 AM
To: [log in to unmask]
Subject: Re: [TN] IPC 9701- table 4.4- failure definition
Hi GA Tan,
No, you cannot mix and match like this. If you use a data logger, you need to
follow b).
What that lab proposes does not work.
With your components, I would definitely recommend using an Event Detector.
I would not be surprised if that lab has not the proper capability to do
either Option a) or Option b)-go elsewhere.
Regards,
Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL 32174 USA
Phone: 386-437-8747, Cell: 386-316-5904
E-mail: [log in to unmask], Website: www.engelmaier.com
**************
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