Inventors:
Barry A. Bonitz - Endicott NY
James V. Ellerson - Endicott NY
Kishen N. Kapur - Vestal NY
Jack M. McCreary - Apalachin NY
Irving Memis - Vestal NY
Gerald M. Vettel - Pine Island MN
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H05K 334
Abstract:
An electronic package assembly wherein a low profile package is soldered to an organic (e. g. , epoxy resin) substrate (e. g. , printed circuit board), the projecting conductive leads of the package and the solder which substantially covers these leads (and respective conductors on the substrate) having been substantially covered with encapsulant material (e. g. , polymer resin) to provide reinforcement for the solder-lead connections. The encapsulant material is dispensed about the solder and lead joints following solder reflow and solidification so as to substantially surround the solder and any portions of the leads not covered with solder. The invention has particular useful with thin, small outline package (TSOP) structures which occupy a minimum of height on the substrate surface.