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January 1997

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Subject:
Re: plastic package hermeticity
From:
[log in to unmask]
Date:
Mon, 27 Jan 1997 18:17:23 -0500 (EST)
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A recently finished study by CALCE (U. of Maryland) on components stored in
some warehouse for 10 to 12 years showed no failures on the the plastic
(non-hermetic) components (14-pin DIPs), but some failures on the ceramic
(hermetic) components. I understand that they will publish this soon.  

Werner Engelmaier
Engelmaier Associates, Inc.
Electronic Packaging, Interconnection and Reliability Consulting
23 Gunther Street
Mendham, NJ  07945  USA
Phone & Fax: 201-543-2747
E-mail: [log in to unmask] 

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