AN OVERVIEW OF CORROSION AND CLIMATE EFFECTS IN ELECTRONICS SYSTEM.

Abstract

Corrosion is a physical-chemical reaction of metal with its environment which causes changes in the properties of the metal and which can often lead to damages of the metal, its environment or the technical system. Climatic effects cause accumulation of water and impurities on the surfaces whereas heat and sunlight also decay the products and accelerate the progress of corrosion and other harmful effects. Water, dust, gases and organic compounds cause leakage currents, short-circuits and mechanical changes. The increase in the packaging density of electronics causes harmful effects to devices to a growing extent and these products are becoming sensitive to the harmful effects of humidity and corrosion.  In electronics system, the contact resistances of the joints, leakage currents between the wires and decay materials increase corrosion and climatic effects which results in various operational faults, increase in electromagnetic disturbances and surfaces finishing deteriorates. This article presents an overview of corrosion and climate effects in electronics system.