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March 1997

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Subject:
Re: ASSY: brainstorm ways to acheive better wetting to Pd-Ag terminations?
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Date:
Wed, 19 Mar 1997 09:05:54 -0500 (EST)
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Your problem is likely not the Pd-Ag surface layers, but the underlying metal
to which you need to wet.  Either that base metal is contaminated and thus
poorly wettable or it may be made of a material, e.g. Alloy 42 (check with
magnet), that is inherently difficult to wet. 

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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