A novel low-temperature solder based on intermetallic-compound phases with superior high-homologous temperature properties

Autor: Minoru Ueshima, Daewoong Suh, Chi-Won Hwang, Jun Sugimoto
Rok vydání: 2008
Předmět:
Zdroj: Materials Letters. 62:2017-2020
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2007.11.006
Popis: A novel low-temperature solder which consists entirely of two phases of intermetallic compounds is reported. The new solder can be reflowed below 125 °C and yet maintains high-temperature mechanical properties at homologous temperatures exceeding 0.9. Specifically, the new solder exhibits creep resistance and high-temperature retention capability exceeding those of conventional low-temperature solders, and its strength even exceeds that of Sn–4%Ag–0.5%Cu (SAC405) at the same homologous temperatures. This intermetallic solder also exhibits room-temperature ductility comparable to conventional solders. Drastic enhancement of wettability is achieved with addition of active metals.
Databáze: OpenAIRE