Calibration of a novel microstructural damage model for wire bonds
In a previous paper, a new time-domain damage-based physics model was proposed for the lifetime prediction of wire bond interconnects in power electronic modules. Unlike cycle-dependent life prediction methodologies, this model innovatively incorporates temperature- and time-dependent properties so...
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| Format: | Article |
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Institute of Electrical and Electronics Engineers
2014
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| Online Access: | https://eprints.nottingham.ac.uk/36305/ |
| _version_ | 1848795261920346112 |
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| author | Yang, L. Agyakwa, P.A. Johnson, C.M. |
| author_facet | Yang, L. Agyakwa, P.A. Johnson, C.M. |
| author_sort | Yang, L. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | In a previous paper, a new time-domain damage-based physics model was proposed for the lifetime prediction of wire bond interconnects in power electronic modules. Unlike cycle-dependent life prediction methodologies, this model innovatively incorporates temperature- and time-dependent properties so that rate-sensitive processes associated with the bond degradation can be accurately represented. This paper presents the work on the development and calibration of the damage model by linking its core parameter, i.e., “damage,” to the strain energy density, which is a physically quantifiable materials property. Isothermal uniaxial tensile data for unbonded pure aluminum wires (99.999%) have been used to develop constitutive functions, and the model has been calibrated by the derived values of the strain energy density. |
| first_indexed | 2025-11-14T19:29:17Z |
| format | Article |
| id | nottingham-36305 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:29:17Z |
| publishDate | 2014 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-363052020-05-04T16:59:24Z https://eprints.nottingham.ac.uk/36305/ Calibration of a novel microstructural damage model for wire bonds Yang, L. Agyakwa, P.A. Johnson, C.M. In a previous paper, a new time-domain damage-based physics model was proposed for the lifetime prediction of wire bond interconnects in power electronic modules. Unlike cycle-dependent life prediction methodologies, this model innovatively incorporates temperature- and time-dependent properties so that rate-sensitive processes associated with the bond degradation can be accurately represented. This paper presents the work on the development and calibration of the damage model by linking its core parameter, i.e., “damage,” to the strain energy density, which is a physically quantifiable materials property. Isothermal uniaxial tensile data for unbonded pure aluminum wires (99.999%) have been used to develop constitutive functions, and the model has been calibrated by the derived values of the strain energy density. Institute of Electrical and Electronics Engineers 2014-12-02 Article PeerReviewed Yang, L., Agyakwa, P.A. and Johnson, C.M. (2014) Calibration of a novel microstructural damage model for wire bonds. IEEE Transactions on Device and Materials Reliability, 14 (4). pp. 989-994. ISSN 1530-4388 http://ieeexplore.ieee.org/document/6891277/?arnumber=6891277 doi:10.1109/TDMR.2014.2354739 doi:10.1109/TDMR.2014.2354739 |
| spellingShingle | Yang, L. Agyakwa, P.A. Johnson, C.M. Calibration of a novel microstructural damage model for wire bonds |
| title | Calibration of a novel microstructural damage model for wire bonds |
| title_full | Calibration of a novel microstructural damage model for wire bonds |
| title_fullStr | Calibration of a novel microstructural damage model for wire bonds |
| title_full_unstemmed | Calibration of a novel microstructural damage model for wire bonds |
| title_short | Calibration of a novel microstructural damage model for wire bonds |
| title_sort | calibration of a novel microstructural damage model for wire bonds |
| url | https://eprints.nottingham.ac.uk/36305/ https://eprints.nottingham.ac.uk/36305/ https://eprints.nottingham.ac.uk/36305/ |