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  • Gold Tin Eutectic Solder - High Reliability
    Gold tin eutectic solder (AuSn20, or 80%gold, 20%tin by weight) is used in a variety of applications requiring a high reliability, high melting solder joint. This includes die-attach and even lid-attach for hermetically-sealed ceramic packages. When used as a die-attach solder alloy for LED or RF
  • Solder Reflow Recommendation
    ), melting and eutectic temperatures also change, requiring modification to the solder reflow profile
  • High Melting Lead-Free Mixed BiAgX (R) Solder Paste System
    Although lead-free soldering has been main stream in the industry since 2006 with the replacement of the eutectic SnPb system by the SnAgCu system, the development of drop-in lead-free alternatives for high melting high lead solder alloys is still far from mature.
  • Achieving High-Reliability Low-Cost Lead-Free SAC Solder Joints via Mn Doping
    In this study, the reliability of low-Ag SAC alloy doped with Mn (SACm (R)) was evaluated under JEDEC drop, dynamic bending, thermal cycling, and cyclic bending test conditions and compared to eutectic SnPb, SAC105, and SAC305 alloys.
  • Tech Tip 12 - Compatible Metallization
    Silver epoxy adhesives (ECAs) have been widely used in semiconductor and electronic packaging industries since the 1960s, as a reliable connection method instead of soldering or eutectic joining of metals.
  • Direct Bonded Copper Ceramic Substrates
    DBC ceramic substrate, short for Direct Bonded Copper Ceramic substrate, is an advanced material composed of a ceramic substrate (typically Al2O3 or AlN) and copper, tightly joined together through a hypo-eutectic process. This unique combination of materials results in a substrate with exceptional

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  • Solder Joint Technology
    Wetting Reaction of Pb-Free Eutectic Solders on Thick Cu UBM...........................................................................
  • Lead-Free Electronic Solders
    For exam- ple, McCormack and coworkers [40, 41] modified the Sn–3.5Ag binary eutectic solder with 0.5–2.0 wt.% Zn additions, and noted substantial refinement of the microstructure; in particular, they observed a decrease in the incidence of b-Sn …
  • Lead-free Solders: Materials Reliability for Electronics
    Tsai, J.Y., Chang, C.W., Ho, C.E. et al. (2006) Microstructure evolution of gold-tin eutectic solder on Cu and Ni substrates.
  • Lead-free Electronics
    After soldering the same components with tin-lead eutectic solder , the lead-free materials were used with a reflow temperature of 245"C, which again was well below the 260°C expected peak.
  • Principles of Soldering
    The authors have com- pared the spreading characteristics, as a function of excess temperature above the melting point (“superheat”), of all combinations of the elements bismuth, indium, lead, silver, and tin when used as eutectic solders on “ideal” substrates [Humpston and Jacobson …
  • A Guide to Lead-free Solders
    As-cast Microstructures of Solder Alloys..........................................73 3.4.1 SnPb Euctectic..........................................................................74 3.4.2 SnAg Eutectic Solder ...............................................................74 3.4.3 SnAgCu Ternary Solders.........................................................75 3.5 .
  • Lead-Free Solder Interconnect Reliability
    and Q.J. Yang, A New Constitutive Creep Constitutive Model for Eutectic Solder Al- .
  • Advanced Flip Chip Packaging
    It has also been utilized to form a hybrid joint, uniting high lead with eutectic solder for joining die onto organic substrates.
  • Micro- and Opto-Electronic Materials and Structures: Physics, Mechanics, Design, Reliability, Packaging
    Reliability of Pb-Free Solder Joints in Comparison to Sn-Pb Eutectic Solder Joints .
  • Lead-Free Soldering
    This approach is eminently logical: the new standard Pb-free alloy replaces Sn-Pb eutectic solder in a wide variety of board designs and microelectronics applications.