2019
DOI: 10.1016/j.microrel.2019.113468
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A new high-voltage H2S single noxious gas reliability test for power modules

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Cited by 8 publications
(6 citation statements)
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“…It was also calculated that it takes four days for the H 2 O to reach equilibrium at 60 ºC. Wassermann et al [1] have shown that increased humidity has an impact on the corrosion behaviour of electronics in a single gas testing, where a higher humidity generated larger dendrite structures under, otherwise, the same conditions. Therefore, a 90% relative humidity was chosen instead of 70% as specified in the standard [14].…”
Section: B Standards Related To Corrosive Gas Testingmentioning
confidence: 99%
See 1 more Smart Citation
“…It was also calculated that it takes four days for the H 2 O to reach equilibrium at 60 ºC. Wassermann et al [1] have shown that increased humidity has an impact on the corrosion behaviour of electronics in a single gas testing, where a higher humidity generated larger dendrite structures under, otherwise, the same conditions. Therefore, a 90% relative humidity was chosen instead of 70% as specified in the standard [14].…”
Section: B Standards Related To Corrosive Gas Testingmentioning
confidence: 99%
“…In these industries, the amount of atmospheric sulphur in the environment has a big impact on the lifetime of the frequency converter. Critical components, such as power modules [1], electrical contacts and thick film resistors are affected by corrosion due to the sulphur in the environment. In these electrical components, corrosion phenomena, such as electrochemical migration [1][2][3] and open connection [4,5], have been reported.…”
Section: Introductionmentioning
confidence: 99%
“…The ceramic is widely used for high-voltage power module packaging insulation in power electronic industries [2]. However, their long-term exposure to environments with a high content of humidity such as seaward wind power station is prone to flashover due to high hydrophilicity, seriously constricting their applications [3]. Worse still, the wet flashover voltage is lower than the dry flashover one resulting in more hazards [4,5].…”
Section: Introductionmentioning
confidence: 99%
“…For corrosion products related to ionic contamination, the situation is different and rather complex. If moisture and atmospheric pollutants like sulphur dioxide (SO2) or hydrogen sulphide (H2S) are present, copper-sulphidedendrites are formed in the insulation trenches on the copper-ceramic-substrate [4,5], leading to ohmic conduction paths between the copper pads. Under dry DC-conditions, the leakage current of the chip conceals the parasitic current through the dendrites and therefore, no sulphur related degradation can be measured [5].…”
Section: Introductionmentioning
confidence: 99%