• DocumentCode
    896243
  • Title

    Low aging quartz crystal units

  • Author

    Hafner, E.

  • Volume
    56
  • Issue
    3
  • fYear
    1968
  • fDate
    3/1/1968 12:00:00 AM
  • Firstpage
    366
  • Lastpage
    368
  • Abstract
    A new process is described whereby quartz crystal units are vacuum baked, plated, and sealed during one and the same pump-down cycle. The crystal blanks are mounted by means of gold rivets and plated with copper. The performance potential of the resulting "clean" and "strain-free" crystal units is demonstrated at 62 MHz where aging rates below ±5×10-10per week and Q values of 200 000 are obtained.
  • Keywords
    Aging; Capacitive sensors; Crystallization; Electrodes; Gettering; Resonance; Resonant frequency; Steel; Temperature; Wires;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IEEE
  • Publisher
    ieee
  • ISSN
    0018-9219
  • Type

    jour

  • DOI
    10.1109/PROC.1968.6315
  • Filename
    1448245
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=896243