Deathnium

Deathnium is a name given by early electronic engineers to a trap in semiconductors that reduces the lifetime of both electron and hole charge carriers. It is considered the fifth of the imperfections that must be considered in semiconductor crystals to understand semiconductor effects along with holes, electrons, donors, and acceptors.[1] Deathnium hastens the establishment of equilibrium between holes and electrons.[1] This condition was not anticipated but it emerged during the invention of bipolar junction transistor after the influence of deep-trap impurities introduced by contamination of the manufacturing machinery, which reduced the lifetime of semiconductor.[2]

Research in the early 1950s eventually revealed that "deathnium" was usually copper.[3]

References
  1. Nobel Lectures in Physics, Volumes 1942-1962. Singapore: World Scientific. 1998. p. 347. ISBN 9810234031.
  2. Cullis, Roger (2007). Patents, Inventions and the Dynamics of Innovation: A Multidisciplinary Study. Cheltenham, UK: Edward Elgar Publishing. p. 272. ISBN 9781845429584.
  3. Burton, J.A. et al. Effects of Nickel and Copper Impurities on the Recombination of Holes and Electrons in Germanium. J. Phys. Chem. 1953, 57, 8, p. 853
  • Transistor Electronics: Imperfections, Unipolar and Analog Transistors, Shockley, W., Bell Telephone Laboratories, Inc., Murray Hill, N.J.; Proceedings of the IRE Volume: 40, Issue: 11 pp: 1289-1313 (Nov. 1952) doi:10.1109/JRPROC.1952.273954
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.