News Column

New Materials Engineering Study Results Reported from University of California (Structure and properties of lead-free solders bearing micro and nano...

September 10, 2014



New Materials Engineering Study Results Reported from University of California (Structure and properties of lead-free solders bearing micro and nano particles)

By a News Reporter-Staff News Editor at Journal of Engineering -- Researchers detail new data in Materials Engineering. According to news reporting out of Los Angeles, California, by VerticalNews editors, research stated, "Composite lead-free solders, containing micro and nano particles, have been widely studied. Due to grain boundary drag or Zener drag, these particles can refrain the solder microstructure from coarsening in services, especially for Cu6Sn5, Ag3Sn intermetallic compounds and the beta-Sn phases."

Our news journalists obtained a quote from the research from the University of California, "Due to dispersion hardening or dislocation drag, the mechanical properties of the composite solder alloys were enhanced significantly. Moreover, these particles can influence the rate of interfacial reactions, and some particles can transform into a layer of intermetallic compound. Wettability, creep resistance, and hardness properties were affected by these particles."

According to the news editors, the research concluded: "A systematic review of the development of these lead-free composite solders is given here, which hopefully may find applications in microbumps to be used in the future 3D IC technology. ."

For more information on this research see: Structure and properties of lead-free solders bearing micro and nano particles. Materials Science & Engineering R-Reports, 2014;82():1-32. Materials Science & Engineering R-Reports can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland.

Our news journalists report that additional information may be obtained by contacting L. Zhang, University of California, Dept. of Mat Sci & Engn, Los Angeles, CA 90095, United States.

Keywords for this news article include: Los Angeles, California, United States, North and Central America, Materials Engineering

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


For more stories covering the world of technology, please see HispanicBusiness' Tech Channel



Source: Journal of Engineering


Story Tools






HispanicBusiness.com Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters