Power semiconductor module

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United States of America Patent

PATENT NO 9881879
SERIAL NO

15449340

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Abstract

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In a power semiconductor module, the 0.2% yield strength of solder under a lead terminal that bonds the lead terminal and a semiconductor element is set to be lower than the 0.2% yield strength of solder under the semiconductor element that bonds the semiconductor element and an insulating substrate. As a result, the lead terminal is expanded with self-heating by energization of the semiconductor element, and stress is applied to the semiconductor element via the solder under the lead terminal. However, the solder under the lead terminal with low 0.2% yield strength reduces the stress that is applied to the semiconductor element. Thus, the reliability of a surface electrode of the semiconductor element that is bonded to the solder under the lead terminal is improved.

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Patent Owner(s)

Patent OwnerAddress
FUJI ELECTRIC CO LTDKAWASAKI COUNTY OF KANAGAWA CITY JAPAN KAWASAKI-SHI KANAGAWA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inaba, Yuki Matsumoto, JP 13 42

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