TY - JOUR

T1 - Morphological study of silver corrosion in highly aggressive sulfur environments

A1 - Minzari,Daniel

A1 - Jellesen,Morten Stendahl

A1 - Møller,Per

A1 - Ambat,Rajan

AU - Minzari,Daniel

AU - Jellesen,Morten Stendahl

AU - Møller,Per

AU - Ambat,Rajan

PB - Pergamon

PY - 2011

Y1 - 2011

N2 - A silicone coated power module, having silver conducting lines, showed severe corrosion, after prolonged use as part of an electronic device in a pig farm environment, where sulfur containing corrosive gasses are known to exist in high amounts. Permeation of sulfur gasses and humidity through the silicone coating to the interface has resulted in three corrosion types namely: uniform corrosion, conductive anodic filament type of Ag2S growth, and silver migration with subsequent formation of sulfur compounds. Detailed morphological investigation of new and corroded power modules was carried out, and possible theoretical explanation for various corrosion mechanisms has been attempted.

AB - A silicone coated power module, having silver conducting lines, showed severe corrosion, after prolonged use as part of an electronic device in a pig farm environment, where sulfur containing corrosive gasses are known to exist in high amounts. Permeation of sulfur gasses and humidity through the silicone coating to the interface has resulted in three corrosion types namely: uniform corrosion, conductive anodic filament type of Ag2S growth, and silver migration with subsequent formation of sulfur compounds. Detailed morphological investigation of new and corroded power modules was carried out, and possible theoretical explanation for various corrosion mechanisms has been attempted.

KW - Coating failures

KW - Electronic-device failures

KW - Corrosion

KW - Failure analysis

U2 - 10.1016/j.engfailanal.2011.07.003

DO - 10.1016/j.engfailanal.2011.07.003

JO - Engineering Failure Analysis

JF - Engineering Failure Analysis

SN - 1350-6307

IS - 8

VL - 18

SP - 2126

EP - 2136

ER -