Document Type

Thesis

Date of Award

1-31-1985

Degree Name

Master of Science in Electrical Engineering - (M.S.)

Department

Electrical Engineering

First Advisor

Raj Pratap Misra

Second Advisor

S. Pandey

Third Advisor

W. H. Warren Ball

Abstract

This study has determined the effect of high humidity and temperature on solid tantalum capacitors, from five different sources.

The reasons for using capacitors from five different prestigious sources is to first determine how the parameters change with the different manufacturing techniques used by the different sources. Secondly to rank the different sources according to reliability. The parameters that were measured before and after the "1000 hour" high temperature and humidity test were, capacitance, leakage current, and equivalent series resistance. All the capacitors showed significant increase in leakage current after the test, but there were wide variations in catastrophic failure rates between different manufacturers. The names of these manufacturers have not been disclosed in order to safeguard their commercial interests.

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