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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ji Wu Pecht, M.G. |
| Copyright Year | 1999 |
| Abstract | As lead-free solders replace tin-lead solders in soldering, it is also expected that lead-free solder alloys will be used as contact finish materials for electrical contacts. In this study, the contact resistance and fretting corrosion of tin-silver-copper and tin-copper coatings were investigated and compared with tin-lead eutectic coating. The contact resistance before and after different aging conditions, including mixed flowing gas, steam, and dry heat aging, was examined. Tin-silver-copper and tin-lead alloy coatings have similar performance on contact resistance versus contact normal force after dry heat aging and MFG aging. Severe degradation was found on tin-silver-copper coatings after steam aging. Higher contact force is suggested in the application of tin-silver-copper solder alloy coating than for eutectic tin-lead alloy coatings. Fretting corrosion on tin-silver-copper and tin-copper lead-free alloy coatings was studied and compared with tin-lead coating. Fretting corrosion experiments were conducted and compared at different temperatures and normal forces. In general, tin-silver-copper and tin-copper alloys show equal or better fretting corrosion resistance than tin-lead eutectic alloy at the experimental conditions in this study |
| Sponsorship | IEEE Components, Packaging, and Manufacturing Technology Society |
| Starting Page | 402 |
| Ending Page | 410 |
| Page Count | 9 |
| File Size | 1907393 |
| File Format | |
| ISSN | 15213331 |
| Volume Number | 29 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Contact resistance Corrosion Environmentally friendly manufacturing techniques Lead Coatings Aging Resistance heating Soldering Degradation Temperature lead-free contact resistance fretting corrosion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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