Electric polarization and depolarization of solder, and their effects on electrical conduction

@article{Yang2021ElectricPA,
  title={Electric polarization and depolarization of solder, and their effects on electrical conduction},
  author={Wenyi Yang and D. D. L. Chung},
  journal={Journal of Materials Science: Materials in Electronics},
  year={2021},
  volume={32},
  pages={6214 - 6227}
}
  • Wenyi Yang, D. Chung
  • Published 11 February 2021
  • Physics
  • Journal of Materials Science: Materials in Electronics
This work provides the first report of the effect of the dielectric behavior on the conduction behavior of solder. The lead-free solder studied contains 96 wt% tin and 4 wt% silver. The electric polarization stems from the interaction of the valence electrons with the atoms. The fraction of valence electrons that participate in the initial polarization is of the order of 10–9. The injected electrons play a minor role compared to the valence electrons of the solder in the polarization. The… 

Effect of temperature on the electrical conduction and dielectric behavior of solder

  • Wenyi YangD. Chung
  • Materials Science, Physics
    Journal of Materials Science: Materials in Electronics
  • 2021
Solder is widely used as an electrical conductor in electronics. This paper reports the effect of heating up to 70 °C on the conduction and dielectric behavior of solder (Sn–4Ag lead-free eutectic

Effect of water on the dielectric behavior of solder

The electrical conduction behavior of solder is well-known, but the dielectric behavior has been reported only recently. Water in the environment commonly affects electronics performance. This work

Effect of the cooling rate in solidification on the electrical behavior of solder

  • Wenyi YangD. Chung
  • Materials Science
    Journal of Materials Science: Materials in Electronics
  • 2021
Solder is widely used for electrical interconnections in electronics, and its use involves the melting and subsequent solidification of the solder. This paper reports for the first time the effect of

First report of the ferroelectric behavior of a metal, as shown for solder

Ferroelectric behavior is well known for nonconductive dielectrics. This work provides the first report of this behavior in a metal, specifically a solder (Sn–4Ag), which is highly conductive. As

Electret behavior discovered in solder, specifically tin–silver

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Dielectric behavior discovered in electrically conductive thick film

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Effect of temperature on the electrical conduction and dielectric behavior of solder

  • Wenyi YangD. Chung
  • Materials Science, Physics
    Journal of Materials Science: Materials in Electronics
  • 2021
Solder is widely used as an electrical conductor in electronics. This paper reports the effect of heating up to 70 °C on the conduction and dielectric behavior of solder (Sn–4Ag lead-free eutectic

Dynamics of the electric polarization and depolarization of graphite

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The high local temperature in flip-chip solder joints of microprocessors has raised concerns that the solder, a low melting temperature alloy, might locally liquefy and consequently cause failure of

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The electromigration failure mechanism in flip-chip solder joints through the rapid dissolution of the Cu metallization was studied in detail. The ambient temperature was found to be a very important

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