Be careful about thin HASL solder layers; below 5 micro-meters (200
micro-inches) solderability can decrease rapidly with shelf life.
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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