Date of Award

Spring 1993

Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Civil and Environmental Engineering

First Advisor

Fournelle, R. A.

Second Advisor

Nigro, N. J.

Third Advisor

Elkouh, A. F.

Abstract

The cross sectional profiles of solder joints with non zero-contact angles formed in upright rectangular corners and inverted solder joints with almost zero-contact angles were characterized metallographically and compared with theoretically calculated profiles. Solder joints in finite tinned rectangular comers in copper specimens were prepared by reflow soldering comers containing different amounts of solder paste. Specimens were then sectioned to reveal the cross-sectional shapes of the joints. These joints were then characterized metallographically for macroscopic shape comparisons with theory. The inverted solder joints were prepared in pretinned rectangular corners in copper specimens by reflow soldering. These joints were then sectioned and their shapes compared with those predicted by existing theory.

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