On the mechanism of the binary Cu/Sn solder reaction
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 053106 |
| Pages (from-to) | 1-3 |
| Journal / Publication | Applied Physics Letters |
| Volume | 86 |
| Issue number | 5 |
| Publication status | Published - 31 Jan 2005 |
| Externally published | Yes |
Link(s)
Abstract
The solder reaction of Cu and molten pure Sn is studied by scanning and transmission electron microscopy. Similar as reported for SnPb solder, the intermetallic Cu 6Sn 5 product is formed in a scallop-like morphology and a growth kinetic proportional to the cube root of time is found. Size distributions and shape of the scallops are determined experimentally. Comparing the binary reaction couple Cu/Sn with the technical combination Cu/SnPb, a significant difference in the length to width aspect ratio of individual scallops is noticed. We demonstrate by transmission electron microscopy that neighbored scallops are not separated by channels of solder, but by grain boundaries. Thus, grain boundary transport is the rate controlling step and the observed variation in scallop shape is due to differences in the interface tensions of the two reaction couples. © 2005 American Institute of Physics.
Bibliographic Note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.
Citation Format(s)
On the mechanism of the binary Cu/Sn solder reaction. / Görlich, J.; Schmitz, G.; Tu, K. N.
In: Applied Physics Letters, Vol. 86, No. 5, 053106, 31.01.2005, p. 1-3.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
