Reliability Control in Parallel Gap Welding Ground Systems Group, Hughes Aircraft Company

Format:

Conference/Event

Author/Creator:

Grobecker, D. W., author.

Conference Name:

Electronic Packaging Conference (1965-10-20 : Los Angeles, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1965

Summary:

Parallel gap welding is a reliable method for joining integrated circuit flat-packs to printed circuit assemblies. Keys to the reliability of the process are the proper selection of materials, the inherent precision of the equipment, and the amenability of the welds to visual inspection.Welds between gold-plated Kovar leads and gold-plated copper-land, glass-epoxy boards were visually inspected, and then either examined metal-lographically or tested for mechanical strength.Normal distribution and extreme value statistics were used to evaluate the weld strength data. If proper control is exercised, over 10, 000 welded connections must be made to expect one weld with a strength value less than 0.5 pound

Notes:

Vendor supplied data

Publisher Number:

650854

Access Restriction:

Restricted for use by site license