Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints
The surface finish of electroless nickel/immersion silver (ENImAg) has been developed as an alternative to lead-free surface finish in electronic industry for the reduction of metal cost without affecting the reliability and solderability performance. In this study, different types of lead-free sold...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
ScienceDirect
2018
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| Online Access: | http://eprints.uthm.edu.my/5599/1/AJ%202018%20%28262%29.pdf |
| _version_ | 1796869226567303168 |
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| author | M.A., Rabiatul Adawiyah O., Saliza Azlina |
| author_facet | M.A., Rabiatul Adawiyah O., Saliza Azlina |
| author_sort | M.A., Rabiatul Adawiyah |
| collection | UTHM |
| description | The surface finish of electroless nickel/immersion silver (ENImAg) has been developed as an alternative to lead-free surface finish in electronic industry for the reduction of metal cost without affecting the reliability and solderability performance. In this study, different types of lead-free solders, Sn-3.0Ag-0.5Cu (SAC305) and Sn-4.0Ag-0.5Cu (SAC405) were involved along with ENImAg and bare copper substrate in order to investigate the formation of intermetallic compounds (IMCs) under reflow and aging time. The characterization and analysis of the samples conducted through scanning electron microscopy and energy dispersive x-ray. As a result, the IMCs of SAC/Cu which were formed on the interface were Cu6Sn5 and Cu3Sn. Unlike the reaction displayed by SAC/Cu, the IMCs of SAC/ENImAg which were formed on the interfaces, were identified as (Cu,Ni)6Sn5) and (Ni,Cu)3Sn4. The kinetic growth of each IMC was analyzed. It was found that IMC of SAC/Cu was thicker than IMC of SAC/ENImAg. Upon the revelation of these observations, ENImAg surface finish reduced the growth of IMC and smaller grains size compared to bare Cu. |
| first_indexed | 2024-03-05T21:51:41Z |
| format | Article |
| id | uthm.eprints-5599 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:51:41Z |
| publishDate | 2018 |
| publisher | ScienceDirect |
| record_format | dspace |
| spelling | uthm.eprints-55992022-01-17T01:56:03Z http://eprints.uthm.edu.my/5599/ Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints M.A., Rabiatul Adawiyah O., Saliza Azlina T Technology (General) TA401-492 Materials of engineering and construction. Mechanics of materials The surface finish of electroless nickel/immersion silver (ENImAg) has been developed as an alternative to lead-free surface finish in electronic industry for the reduction of metal cost without affecting the reliability and solderability performance. In this study, different types of lead-free solders, Sn-3.0Ag-0.5Cu (SAC305) and Sn-4.0Ag-0.5Cu (SAC405) were involved along with ENImAg and bare copper substrate in order to investigate the formation of intermetallic compounds (IMCs) under reflow and aging time. The characterization and analysis of the samples conducted through scanning electron microscopy and energy dispersive x-ray. As a result, the IMCs of SAC/Cu which were formed on the interface were Cu6Sn5 and Cu3Sn. Unlike the reaction displayed by SAC/Cu, the IMCs of SAC/ENImAg which were formed on the interfaces, were identified as (Cu,Ni)6Sn5) and (Ni,Cu)3Sn4. The kinetic growth of each IMC was analyzed. It was found that IMC of SAC/Cu was thicker than IMC of SAC/ENImAg. Upon the revelation of these observations, ENImAg surface finish reduced the growth of IMC and smaller grains size compared to bare Cu. ScienceDirect 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/5599/1/AJ%202018%20%28262%29.pdf M.A., Rabiatul Adawiyah and O., Saliza Azlina (2018) Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints. Journal of Alloys and Compounds, 740. pp. 958-966. ISSN 0925-8388 |
| spellingShingle | T Technology (General) TA401-492 Materials of engineering and construction. Mechanics of materials M.A., Rabiatul Adawiyah O., Saliza Azlina Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints |
| title | Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints |
| title_full | Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints |
| title_fullStr | Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints |
| title_full_unstemmed | Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints |
| title_short | Comparative study on the isothermal aging of bare Cu and ENImAg surface finish for Sn-Ag-Cu solder joints |
| title_sort | comparative study on the isothermal aging of bare cu and enimag surface finish for sn ag cu solder joints |
| topic | T Technology (General) TA401-492 Materials of engineering and construction. Mechanics of materials |
| url | http://eprints.uthm.edu.my/5599/1/AJ%202018%20%28262%29.pdf |
| work_keys_str_mv | AT marabiatuladawiyah comparativestudyontheisothermalagingofbarecuandenimagsurfacefinishforsnagcusolderjoints AT osalizaazlina comparativestudyontheisothermalagingofbarecuandenimagsurfacefinishforsnagcusolderjoints |