Abstract
The reactive Sn63Pb37 spreading on patterned film structures was examined in a reducing atmosphere (H2 5%+Ar 95%). Liquid solder spreading was observed to follow the wheel pattern made of Au/Cu thin film. At the center, a liquid cap was formed around the hub by viscous spreading of the liquid front. Ahead of the main viscous flow front, a liquid film was found to be extended on thin Au-Cu lines at a fast rate to a great distance by rapid Sn-Au chemical reaction.
Original language | English (US) |
---|---|
Pages (from-to) | 1143-1147 |
Number of pages | 5 |
Journal | Journal of Materials Science and Technology |
Volume | 26 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2010 |
Externally published | Yes |
Keywords
- Liquid film
- Reactive wetting
- Solder
- Spreading
- Thin film pattern
- Wetting
ASJC Scopus subject areas
- Ceramics and Composites
- Polymers and Plastics
- Metals and Alloys
- Materials Chemistry
- Mechanics of Materials
- Mechanical Engineering