Non-destructive orientation mapping of die-attach lead-free solder

Thermo-mechanical fatigue poses a serious challenge to the electrical operation of power semiconductor modules, manifested by the degradation of die-attach lead-free solder. So far, orientation microscopy (OM) using electron backscatter diffraction is considered a sensitive approach to characterizin...

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Main Authors: Yujiro Hayashi, Hidehiko Kimura
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:Applied Physics Express
Subjects:
Online Access:https://doi.org/10.35848/1882-0786/ad9077
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author Yujiro Hayashi
Hidehiko Kimura
author_facet Yujiro Hayashi
Hidehiko Kimura
author_sort Yujiro Hayashi
collection DOAJ
description Thermo-mechanical fatigue poses a serious challenge to the electrical operation of power semiconductor modules, manifested by the degradation of die-attach lead-free solder. So far, orientation microscopy (OM) using electron backscatter diffraction is considered a sensitive approach to characterizing the degradation of solder. However, its destructive character inhibits assessing solder inside the power modules. We propose a non-destructive OM method based on X-ray diffraction and successfully observed the changes in the orientation of the solder caused by thermo-mechanical fatigue. The proposed non-destructive OM method can facilitate the development of reliable power modules by evaluating the degradation of the solder inside the power modules.
format Article
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institution Kabale University
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publishDate 2024-01-01
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spelling doaj-art-07d5d620b4b54218a5fc6e9f8ef6b6982024-11-26T07:46:55ZengIOP PublishingApplied Physics Express1882-07862024-01-01171111650410.35848/1882-0786/ad9077Non-destructive orientation mapping of die-attach lead-free solderYujiro Hayashi0Hidehiko Kimura1https://orcid.org/0000-0003-0031-9823Toyota Central R&D Laboratories Incorporated , Nagakute, Aichi 480-1192, JapanToyota Central R&D Laboratories Incorporated , Nagakute, Aichi 480-1192, JapanThermo-mechanical fatigue poses a serious challenge to the electrical operation of power semiconductor modules, manifested by the degradation of die-attach lead-free solder. So far, orientation microscopy (OM) using electron backscatter diffraction is considered a sensitive approach to characterizing the degradation of solder. However, its destructive character inhibits assessing solder inside the power modules. We propose a non-destructive OM method based on X-ray diffraction and successfully observed the changes in the orientation of the solder caused by thermo-mechanical fatigue. The proposed non-destructive OM method can facilitate the development of reliable power modules by evaluating the degradation of the solder inside the power modules.https://doi.org/10.35848/1882-0786/ad9077synchrotron radiation X-rayorientation mappinglead-free solderpower modules
spellingShingle Yujiro Hayashi
Hidehiko Kimura
Non-destructive orientation mapping of die-attach lead-free solder
Applied Physics Express
synchrotron radiation X-ray
orientation mapping
lead-free solder
power modules
title Non-destructive orientation mapping of die-attach lead-free solder
title_full Non-destructive orientation mapping of die-attach lead-free solder
title_fullStr Non-destructive orientation mapping of die-attach lead-free solder
title_full_unstemmed Non-destructive orientation mapping of die-attach lead-free solder
title_short Non-destructive orientation mapping of die-attach lead-free solder
title_sort non destructive orientation mapping of die attach lead free solder
topic synchrotron radiation X-ray
orientation mapping
lead-free solder
power modules
url https://doi.org/10.35848/1882-0786/ad9077
work_keys_str_mv AT yujirohayashi nondestructiveorientationmappingofdieattachleadfreesolder
AT hidehikokimura nondestructiveorientationmappingofdieattachleadfreesolder