Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders
In the present study, the interaction between thin film Cu and non-eutectic Sn-In is studied. The effects of the bonding and aging temperature on microstructure, IMC formation and also shear strength are investigated by SEM/EDX, XRD and shear testing. The bonding mechanism is proposed based on the o...
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers
2010
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| Online Access: | http://hdl.handle.net/1721.1/60303 https://orcid.org/0000-0002-0121-8285 |
| _version_ | 1826216945184145408 |
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| author | Thompson, Carl V. Sasangka, W. A. Gan, Chee Lip Choi, W. K. Wei, J. |
| author2 | MIT Materials Research Laboratory |
| author_facet | MIT Materials Research Laboratory Thompson, Carl V. Sasangka, W. A. Gan, Chee Lip Choi, W. K. Wei, J. |
| author_sort | Thompson, Carl V. |
| collection | MIT |
| description | In the present study, the interaction between thin film Cu and non-eutectic Sn-In is studied. The effects of the bonding and aging temperature on microstructure, IMC formation and also shear strength are investigated by SEM/EDX, XRD and shear testing. The bonding mechanism is proposed based on the obtained results. The bonding mechanism is proposed to occur over 2 stages: (1) An increase in bonding temperatures leads to an increase in the true contact area, and (2) The aging temperature leads to interdiffusion and assists formation of the IMC. The type of IMC that forms is à ¿ phase (Cu6(Sn, In)5) which is similar to the interaction between Cu and eutectic Sn-In. The shear strength increases with increasing the bonding temperature. On the other hand, the aging temperature does not have a significant impact on the shear strength. This indicates that the shear strength is mostly affected by the true contact area rather than the IMC formation. |
| first_indexed | 2024-09-23T16:55:58Z |
| format | Article |
| id | mit-1721.1/60303 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:55:58Z |
| publishDate | 2010 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | mit-1721.1/603032022-09-29T22:28:45Z Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders Thompson, Carl V. Sasangka, W. A. Gan, Chee Lip Choi, W. K. Wei, J. MIT Materials Research Laboratory Massachusetts Institute of Technology. Department of Materials Science and Engineering Thompson, Carl V. Thompson, Carl V. In the present study, the interaction between thin film Cu and non-eutectic Sn-In is studied. The effects of the bonding and aging temperature on microstructure, IMC formation and also shear strength are investigated by SEM/EDX, XRD and shear testing. The bonding mechanism is proposed based on the obtained results. The bonding mechanism is proposed to occur over 2 stages: (1) An increase in bonding temperatures leads to an increase in the true contact area, and (2) The aging temperature leads to interdiffusion and assists formation of the IMC. The type of IMC that forms is à ¿ phase (Cu6(Sn, In)5) which is similar to the interaction between Cu and eutectic Sn-In. The shear strength increases with increasing the bonding temperature. On the other hand, the aging temperature does not have a significant impact on the shear strength. This indicates that the shear strength is mostly affected by the true contact area rather than the IMC formation. Singapore-MIT Alliance 2010-12-17T16:26:31Z 2010-12-17T16:26:31Z 2010-02 2009-12 Article http://purl.org/eprint/type/ConferencePaper 978-1-4244-5100-5 978-1-4244-5099-2 INSPEC Accession Number: 11141084 http://hdl.handle.net/1721.1/60303 Sasangka, W.A. et al. “Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders.” Electronics Packaging Technology Conference, 2009. EPTC '09. 11th. 2009. 336-341. ©2010 IEEE. https://orcid.org/0000-0002-0121-8285 en_US http://dx.doi.org/10.1109/EPTC.2009.5416527 11th Electronics Packaging Technology Conference, 2009. EPTC '09 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers IEEE |
| spellingShingle | Thompson, Carl V. Sasangka, W. A. Gan, Chee Lip Choi, W. K. Wei, J. Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders |
| title | Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders |
| title_full | Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders |
| title_fullStr | Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders |
| title_full_unstemmed | Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders |
| title_short | Effect of bonding and aging temperatures on bond strengths of Cu with 75Sn25In solders |
| title_sort | effect of bonding and aging temperatures on bond strengths of cu with 75sn25in solders |
| url | http://hdl.handle.net/1721.1/60303 https://orcid.org/0000-0002-0121-8285 |
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