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Science, 2014
Chemistry![Figure][1] CREDIT: REN-GEN XIONG Ferroelectric materials have a permanent electric dipole moment that can be switched by the application of an external electric field, a property that makes them widely used in sensing, memory, and actuators.
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Chemistry![Figure][1] CREDIT: REN-GEN XIONG Ferroelectric materials have a permanent electric dipole moment that can be switched by the application of an external electric field, a property that makes them widely used in sensing, memory, and actuators.
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Lead-free Flux Effect in Lead-free Solder Joint Improvement
2006 Thirty-First IEEE/CPMT International Electronics Manufacturing Technology Symposium, 2006Lead-free flux used in lead-free solder ball attachment process has been found to play a vital role in improving lead-free solder joint robustness & performance. In this study, two water soluble lead-free solder ball attach fluxes, flux A & flux B, each from different supplier, were compared in terms of the following characteristics: time variation of ...
Eu Poh Leng +4 more
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Interfacial Reaction of Lead-Free Solders with Lead-Free Finished Leadframes
2006 International Conference on Electronic Materials and Packaging, 2006Due to the implementation of the legislations to restrict the use of environmental unfriendly materials, the use of lead (Pb) in electronic products is banned. This includes the use of surface finishing materials such as that for integrated circuit (IC) leadframes.
Y. W. Wong +4 more
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Prevailing Lead-Free Materials
2020Lead-containing solders, particularly tin-lead solders, have been widely used in electronics industry for a long time. This is primarily due to a combined merit of low cost, good soldering properties, adequate melting temperature range, and proper physical, mechanical, metallurgical, and fatigue resistance properties.
John H. Lau, Ning-Cheng Lee
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Journal of Electronic Materials, 1994
Two specific examples of the new lead-free alloys are described. In the Sn-3.5%Ag-l%Zn alloy (m.p.~217°C), the eutectic precipitate morphology is refined by the relatively small amount of zinc addition and as a result, a high-strength, high-ductility solder with significantly improved creep resistance is obtained.
M. McCormack, S. Jin
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Two specific examples of the new lead-free alloys are described. In the Sn-3.5%Ag-l%Zn alloy (m.p.~217°C), the eutectic precipitate morphology is refined by the relatively small amount of zinc addition and as a result, a high-strength, high-ductility solder with significantly improved creep resistance is obtained.
M. McCormack, S. Jin
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2012
1. Domain Engineering and Phase Transformations.- 2. Ferroelectric Domains and Grain Engineering in SrBi2Ta2O9.- 3. Development of KNN-based Piezoelectric Ceramics.- 4. Low temperature Sintering of the Alkali-Niobate Ceramics.- 5. Lead-Free KNN-Based Piezoelectric Materials.- 6. Alkali niobate piezoelectric ceramics.- 7.
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1. Domain Engineering and Phase Transformations.- 2. Ferroelectric Domains and Grain Engineering in SrBi2Ta2O9.- 3. Development of KNN-based Piezoelectric Ceramics.- 4. Low temperature Sintering of the Alkali-Niobate Ceramics.- 5. Lead-Free KNN-Based Piezoelectric Materials.- 6. Alkali niobate piezoelectric ceramics.- 7.
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2011
Description Eleven peer-reviewed papers address the environmental and health concerns related to the exposure to lead during soldering and the success and failures of lead-free solders. Topics cover STP 1530 is a valuable resource for students, researchers, and material scientists in the electronic industry.
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Description Eleven peer-reviewed papers address the environmental and health concerns related to the exposure to lead during soldering and the success and failures of lead-free solders. Topics cover STP 1530 is a valuable resource for students, researchers, and material scientists in the electronic industry.
openaire +1 more source